The Plant List — A working list for all plant species

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2506 plant name records match your search criteria Rhododendron. The results are below.

The names found have these generic epithets:

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See "Status", "Confidence level", "Source" for definitions.

Name Status Confi­dence level Source Date supplied
Rhododendron aberconwayi Cowan Accepted M TRO
Rhododendron aberrans Tagg & Forrest Synonym M TRO
Rhododendron abietifolium Sleumer Unresolved L WCSP (in review)
Rhododendron achroanthum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron acraium Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron acrocline Sleumer Unresolved L WCSP (in review)
Rhododendron acrophilum Merr. & Quisumb. Unresolved L WCSP (in review)
Rhododendron acuminatum Hook.f. Unresolved L WCSP (in review)
Rhododendron adamsii Rehder Unresolved L WCSP (in review)
Rhododendron adansonii Pépin Unresolved L WCSP (in review)
Rhododendron adenanthum M.Y. He Accepted M TRO
Rhododendron adendobracteatum X.F. Gao & Y.L. Peng Unresolved L TRO
Rhododendron adenobracteum X.F.Gao & Y.L.Peng Unresolved L WCSP (in review)
Rhododendron adenogynum Diels Accepted M TRO
Rhododendron adenophorum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron adenopodum Franch. Accepted M TRO
Rhododendron adenostemonum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron adenosum Davidian Accepted M TRO
Rhododendron adinophyllum Merr. Unresolved L WCSP (in review)
Rhododendron admirabile Balf. f. & Forrest Synonym M TRO
Rhododendron adoxum Balf. f. & Forrest Synonym M TRO
Rhododendron adroserum Balf. f. & Forrest Synonym M TRO
Rhododendron aechmophyllum Balf. f. & Forrest Synonym M TRO
Rhododendron aemulorum Balf. f. Synonym M TRO
Rhododendron aequabile J.J.Sm. Unresolved L WCSP (in review)
Rhododendron aeruginosum Hook. f. Synonym M TRO
Rhododendron afghanicum Aitch. & Hemsl. Accepted M TRO
Rhododendron aganniphum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron aganniphum var. aganniphum Synonym L TRO
Rhododendron aganniphum var. flavorufum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron aganniphum var. schizopeplum (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron agapetum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron agastum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron agastum var. agastum Synonym L TRO
Rhododendron agastum var. pennivenium (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron agathodaemonis J.J.Sm. Unresolved L WCSP (in review)
Rhododendron agetum Balf. f. & Forrest Synonym M TRO
Rhododendron agglutinatum Balf. f. & Forrest Synonym M TRO
Rhododendron aiolopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron aiolosalpinx Balf. f. & Farrer Synonym M TRO
Rhododendron aischropeplum Balf. f. & Forrest Synonym M TRO
Rhododendron alabamense Rehder Accepted M TRO
Rhododendron albertsenianum Forrest Accepted M TRO
Rhododendron albescens W.Bull Unresolved L WCSP (in review)
Rhododendron × albicans Waterer ex Zabel Unresolved L WCSP (in review)
Rhododendron albicaule H.Lév. Unresolved L WCSP (in review)
Rhododendron albiflorum Hook. Accepted M TRO
Rhododendron albiflorum var. warrenii (A. Nelson) M.A. Lane Synonym L TRO
Rhododendron alborugosum Argent & J.Dransf. Unresolved L WCSP (in review)
Rhododendron albrechtii Maxim. Unresolved L WCSP (in review)
Rhododendron album Blume Unresolved L WCSP (in review)
Rhododendron album Buch.-Ham. ex D.Don Unresolved L WCSP (in review)
Rhododendron album Hoffmanns. Unresolved L WCSP (in review)
Rhododendron algarvense Page Unresolved L WCSP (in review)
Rhododendron alpicola Rehder & E.H. Wilson Synonym M TRO
Rhododendron alpicola var. strictum Rehder & E.H. Wilson Synonym L TRO
Rhododendron × alstroemerioides Lem. Unresolved L WCSP (in review)
Rhododendron altaclerense Lindl. Unresolved L WCSP (in review)
Rhododendron alternans Sleumer Unresolved L WCSP (in review)
Rhododendron alticola Sleumer Unresolved L WCSP (in review)
Rhododendron alutaceum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron alutaceum var. alutaceum Synonym L TRO
Rhododendron alutaceum var. iodes (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron alutaceum var. russotinctum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron amabile Sleumer Unresolved L WCSP (in review)
Rhododendron amagianum (Makino) Makino ex H.Hara Unresolved L WCSP (in review)
Rhododendron amakusaense (Takeda ex T.Yamaz.) T.Yamaz. Unresolved L WCSP (in review)
Rhododendron amamiense Ohwi Synonym M TRO
Rhododendron amandum Cowan Accepted M TRO
Rhododendron amanoi Ohwi Unresolved L WCSP (in review)
Rhododendron amaurophyllum Balf. f. & Forrest Synonym M TRO
Rhododendron ambiguum Hemsl. Accepted M TRO
Rhododendron amesiae Rehder & E.H. Wilson Accepted M TRO
Rhododendron amoenum Planch. Unresolved L WCSP (in review)
Rhododendron amphichlorum Ingram Unresolved L WCSP (in review)
Rhododendron amundsenianum Hand.-Mazz. Accepted M TRO
Rhododendron anagalliflorum Wernham Unresolved L WCSP (in review)
Rhododendron andersonii Ridl. Unresolved L WCSP (in review)
Rhododendron angiense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron angulatum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron angustifolium Hoppe Unresolved L WCSP (in review)
Rhododendron anhweiense E.H. Wilson Synonym M TRO
Rhododendron annae Franch. Accepted M TRO
Rhododendron annae subsp. annae Synonym L TRO
Rhododendron annae subsp. laxiflorum (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron annamense Rehder Unresolved L WCSP (in review)
Rhododendron × anneliesae Rehder Unresolved L WCSP (in review)
Rhododendron anthopogon D. Don Accepted M TRO
Rhododendron anthopogon var. album Davidian Synonym L TRO
Rhododendron anthopogon var. haemonium (Balf. f. & R.E. Cooper) Cowan & Davidian Accepted L TRO
Rhododendron anthopogon subsp. hypenanthum (Balf. f.) Cullen Synonym L TRO
Rhododendron anthopogon var. hypenanthum (Balf. f.) H. Hara Synonym L TRO
Rhododendron anthopogonoides Maxim. Accepted M TRO
Rhododendron anthopogonoides subsp. hoi (W.P. Fang) W.P. Fang Synonym L TRO
Rhododendron anthosphaerum Diels Accepted M TRO
Rhododendron anthosphaerum var. eritimum (Balf. f. & W.W. Sm.) Davidian Synonym L TRO
Rhododendron anthosphaerum subsp. hylothreptum (Balf. f. & W.W. Sm.) Tagg Synonym L TRO
Rhododendron anwheiense E.H.Wilson Unresolved L WCSP (in review)
Rhododendron aperantum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron apiculatum Rehder & E.H. Wilson Synonym M TRO
Rhododendron apiense Argent Unresolved L WCSP (in review)
Rhododendron apoanum Stein Unresolved L WCSP (in review)
Rhododendron apodectum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron apricum P.C. Tam Accepted M TRO
Rhododendron apricum var. falcinellum P.C. Tam Synonym L TRO
Rhododendron araiophyllum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron araiophyllum subsp. araiophyllum Synonym L TRO
Rhododendron araiophyllum subsp. lapidosum (T.L. Ming) M.Y. Fang Accepted L TRO
Rhododendron araliiforme Balf. f. & Forrest Synonym M TRO
Rhododendron arborescens (Pursh) Torr. Accepted L TRO
Rhododendron arboreum Sm. Accepted M TRO
Rhododendron arboreum var. album Wall. Synonym L TRO
Rhododendron arboreum var. arboreum Synonym L TRO
Rhododendron arboreum subsp. campbelliae (Hook. f.) Tagg Synonym L TRO
Rhododendron arboreum subsp. cinnamomeum (Wall. ex G. Don) Tagg Synonym L TRO
Rhododendron arboreum var. cinnamomeum (Wall. ex G. Don) Lindl. Accepted L TRO
Rhododendron arboreum subsp. delavayi (Franch.) D.F. Chamb. Synonym L TRO
Rhododendron arboreum var. peramoenum (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron arboreum var. roseum Lindl. Accepted L TRO
Rhododendron × arbutifolium Rehder Unresolved L WCSP (in review)
Rhododendron archboldianum Sleumer Unresolved L WCSP (in review)
Rhododendron arenicola Sleumer Unresolved L WCSP (in review)
Rhododendron arfskianum Becc. Unresolved L WCSP (in review)
Rhododendron argenteum Hook. f. Synonym M TRO
Rhododendron argipeplum Balf. f. & R.E. Cooper Accepted M TRO
Rhododendron argyi H. Lév. Synonym M TRO
Rhododendron argyrophyllum Franch. Accepted M TRO
Rhododendron argyrophyllum subsp. argyrophyllum Synonym L TRO
Rhododendron argyrophyllum var. cupulare Rehder & E.H. Wilson Synonym L TRO
Rhododendron argyrophyllum subsp. hejiangense W.P. Fang Synonym L TRO
Rhododendron argyrophyllum subsp. hypoglaucum (Hemsl.) D.F. Chamb. Synonym L TRO
Rhododendron argyrophyllum var. leiandrum Hutch. Synonym L TRO
Rhododendron argyrophyllum var. nankingense Cowan Synonym L TRO
Rhododendron argyrophyllum subsp. nankingense (Cowan) D.F. Chamb. Accepted L TRO
Rhododendron argyrophyllum var. omeiense Rehder & E.H. Wilson Synonym L TRO
Rhododendron argyrophyllum subsp. omeiense (Rehder & E.H. Wilson) D.F. Chamb. Accepted L TRO
Rhododendron aristatum Royle Unresolved L WCSP (in review)
Rhododendron arizelum Balf. f. & Forrest Accepted M TRO
Rhododendron armitii F.M.Bailey Unresolved L WCSP (in review)
Rhododendron aromaticum Wall. Unresolved L WCSP (in review)
Rhododendron artosquameum Balf. f. & Forrest Synonym M TRO
Rhododendron arunachalense D.F.Chamb. & Rae Unresolved L WCSP (in review)
Rhododendron × ashitakayamense Sugim. Unresolved L WCSP (in review)
Rhododendron ashleyi Coker Unresolved L WCSP (in review)
Rhododendron asmenistum Balf. f. & Forrest Synonym M TRO
Rhododendron asparagoides Wernham Unresolved L WCSP (in review)
Rhododendron asperrimum Sleumer Unresolved L WCSP (in review)
Rhododendron asperulum Hutch. & Kingdon-Ward Accepted M TRO
Rhododendron asperum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron assamicum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron assamicum auct. Unresolved L WCSP (in review)
Rhododendron asteium Balf. f. & Forrest Synonym M TRO
Rhododendron asterochnoum Diels Accepted M TRO
Rhododendron asterochnoum var. asterochnoum Synonym L TRO
Rhododendron astrapiae F.Först. Unresolved L WCSP (in review)
Rhododendron astrocalyx Balf. f. & Forrest Synonym M TRO
Rhododendron atentsiense Hand.-Mazz. Synonym M TRO
Rhododendron atjehense Sleumer Unresolved L WCSP (in review)
Rhododendron atlanticum (Ashe) Rehder Accepted L TRO
Rhododendron atlanticum f. atlanticum Synonym L TRO
Rhododendron atrichum Argent Unresolved L WCSP (in review)
Rhododendron atropunicum H.P. Yang Accepted M TRO
Rhododendron atropurpureum Sleumer Unresolved L WCSP (in review)
Rhododendron atrovirens Franch. Accepted M TRO
Rhododendron atroviride Dunn Unresolved L WCSP (in review)
Rhododendron aucklandii Hook. f. Synonym M TRO
Rhododendron aucubifolium Hemsl. Synonym M TRO
Rhododendron augustinii Hemsl. Accepted M TRO
Rhododendron augustinii subsp. augustinii Synonym L TRO
Rhododendron augustinii subsp. chasmanthum (Diels) Cullen Accepted L TRO
Rhododendron augustinii var. chasmanthum (Diels) R.C. Fang Synonym L TRO
Rhododendron augustinii f. grandifolum Franch. Synonym L TRO
Rhododendron augustinii subsp. hardyi (Davidian) Cullen Synonym L TRO
Rhododendron augustinii f. hardyi (Davidian) R.C. Fang Synonym L TRO
Rhododendron augustinii var. rubrum Davidian Synonym L TRO
Rhododendron augustinii subsp. rubrum (Davidian) Cullen Synonym L TRO
Rhododendron augustinii f. rubrum (Davidian) R.C. Fang Synonym L TRO
Rhododendron augustinii f. subglabrum Franch. Synonym L TRO
Rhododendron augustinii var. yui W.P. Fang Synonym L TRO
Rhododendron aureum Georgi Accepted M TRO
Rhododendron auriculatum Hemsl. Accepted M TRO
Rhododendron aurigeranum Sleumer Unresolved L WCSP (in review)
Rhododendron auritum Tagg Accepted M TRO
Rhododendron australe Balf. f. & Forrest Synonym M TRO
Rhododendron austrinum (Small) Rehder Accepted L TRO
Rhododendron austrokiusianum Hatus. Unresolved L WCSP (in review)
Rhododendron axium Balf. f. & Forrest Synonym M TRO
Rhododendron azaleoides Desf. Unresolved L WCSP (in review)
Rhododendron bachii H. Lév. Accepted M TRO
Rhododendron baconii Argent, A.L.Lamb & Phillipps Unresolved L WCSP (in review)
Rhododendron baenitzianum Lauterb. Unresolved L WCSP (in review)
Rhododendron baeticum Boiss. & Reut. Synonym M WCSP (in review)
Rhododendron bagobonum H.F.Copel. Unresolved L WCSP (in review)
Rhododendron baileyi Balf. f. Accepted M TRO
Rhododendron bainbridgeanum Tagg & Forrest Accepted M TRO
Rhododendron bakeri Hume Accepted M TRO
Rhododendron balangense W.P. Fang Accepted M TRO
Rhododendron balfourianum Diels Accepted M TRO
Rhododendron balfourianum var. balfourianum Synonym L TRO
Rhododendron × balsaminiflorum T.Moore Unresolved L WCSP (in review)
Rhododendron bamaense Z.J. Zhao Accepted M TRO
Rhododendron banghamiorum (J.J.Sm.) Sleumer Unresolved L WCSP (in review)
Rhododendron barbatum Wall. ex G. Don Accepted M TRO
Rhododendron barkamense D.F. Chamb. Accepted M TRO
Rhododendron basfordii Davidian Unresolved L WCSP (in review)
Rhododendron basilicum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron basirotundatum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron batangense Balf. f. Synonym M TRO
Rhododendron batemanii Hook.f. Unresolved L WCSP (in review)
Rhododendron bathyphyllum Balf. f. & Forrest Accepted M TRO
Rhododendron × bathyphyllum Balf. f. & Forrest Unresolved L TRO
Rhododendron bauhiniiflorum Watt ex Hutch. Synonym M TRO
Rhododendron beanianum Cowan Accepted M TRO
Rhododendron beanianum var. compactum Cowan Synonym L TRO
Rhododendron beccarii Sleumer Unresolved L WCSP (in review)
Rhododendron beesianum Diels Accepted M TRO
Rhododendron beimaense Balf. f. & Forrest Synonym L TRO
Rhododendron bellissimum D.F. Chamb. Accepted M TRO
Rhododendron bellum W.P. Fang & G.Z. Li Synonym M TRO
Rhododendron benhallii Craven Unresolved L WCSP (in review)
Rhododendron benthamianum Hemsl. Synonym M TRO
Rhododendron bergii Davidian Synonym M TRO
Rhododendron beyerinckianum Koord. Unresolved L WCSP (in review)
Rhododendron bhotanicum C.B. Clarke Synonym M TRO
Rhododendron bhutanense D.G.Long & Bowes Lyon Unresolved L WCSP (in review)
Rhododendron bicolor P.C. Tam Synonym M TRO
Rhododendron bicorniculatum P.C. Tam Synonym M TRO
Rhododendron bigener Steud. Unresolved L WCSP (in review)
Rhododendron bijiangense T.L. Ming Accepted M TRO
Rhododendron bivelatum Balf. f. Accepted M TRO
Rhododendron blackii Sleumer Unresolved L WCSP (in review)
Rhododendron blandfordiiflorum Hook. Unresolved L WCSP (in review)
Rhododendron blandinianum Martrin-Donos Unresolved L WCSP (in review)
Rhododendron blandulum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron blepharocalyx Franch. Synonym M TRO
Rhododendron blinii H. Lév. Synonym M TRO
Rhododendron bloembergenii Sleumer Unresolved L WCSP (in review)
Rhododendron blumei Nutt. Unresolved L WCSP (in review)
Rhododendron bodenii Wernham Unresolved L WCSP (in review)
Rhododendron bodinieri Franch. Synonym M TRO
Rhododendron boninense Nakai Accepted M WCSP (in review)
Rhododendron bonvalotii Bureau & Franch. Accepted M TRO
Rhododendron boothii Nutt. Accepted M TRO
Rhododendron borneense (J.J.Sm.) Argent, A.L.Lamb & Phillipps Unresolved L WCSP (in review)
Rhododendron brachyandrum Balf. f. & Forrest Synonym M TRO
Rhododendron brachyantherum Warb. ex P.Sarasin & Sarasin Unresolved L WCSP (in review)
Rhododendron brachyanthum Franch. Accepted M TRO
Rhododendron brachyanthum subsp. brachyanthum Synonym L TRO
Rhododendron brachyanthum var. hypolepidotum Franch. Synonym L TRO
Rhododendron brachyanthum subsp. hypolepidotum (Franch.) Cullen Accepted L TRO
Rhododendron brachycarpum auct. Synonym M TRO
Rhododendron brachygynum H.F.Copel. Unresolved L WCSP (in review)
Rhododendron brachypodarium Sleumer Unresolved L WCSP (in review)
Rhododendron brachypodum W.P. Fang & P.S. Liu Accepted M TRO
Rhododendron brachysiphon Balf. f. Synonym M TRO
Rhododendron brachystylum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron bracteatum Rehder & E.H. Wilson Accepted M TRO
Rhododendron brassii Sleumer Unresolved L WCSP (in review)
Rhododendron brettii Hemsl. & E.H. Wilson Synonym M TRO
Rhododendron brevicaudatum R.C. Fang & S.S. Chang Accepted M TRO
Rhododendron brevinerve Chun & W.P. Fang Accepted M TRO
Rhododendron breviperulatum Hayata Accepted M TRO
Rhododendron brevipes Sleumer Unresolved L WCSP (in review)
Rhododendron brevipetiolatum M.Y. Fang Accepted M TRO
Rhododendron brevistylum Franch. Synonym M TRO
Rhododendron brevitubum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron brevitubum Balf.f. & R.E.Cooper Unresolved L WCSP (in review)
Rhododendron breynii Planch. Synonym M TRO
Rhododendron brookeanum H.Low ex Lindl. Unresolved L WCSP (in review)
Rhododendron brunneifolium Balf. f. & Forrest Synonym M TRO
Rhododendron bryophilum Sleumer Unresolved L WCSP (in review)
Rhododendron buergeri Miq. Unresolved L WCSP (in review)
Rhododendron bullatum Franch. Synonym M TRO
Rhododendron bullifolium Sleumer Unresolved L WCSP (in review)
Rhododendron bulu Hutch. Accepted M TRO
Rhododendron × bungonishikii Komatsu Unresolved L WCSP (in review)
Rhododendron bureavii Franch. Accepted M TRO
Rhododendron bureavioides Balf. f. Synonym M TRO
Rhododendron burjaticum Malyschev Unresolved L WCSP (in review)
Rhododendron burmanicum Hutch. Unresolved L WCSP (in review)
Rhododendron burmanni G.Don Unresolved L WCSP (in review)
Rhododendron burriflorum Balf. f. & Forrest Synonym M TRO
Rhododendron burtii P.Woods Unresolved L WCSP (in review)
Rhododendron buruense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron buxifolium H.Low ex Hook.f. Unresolved L WCSP (in review)
Rhododendron buxoides Sleumer Unresolved L WCSP (in review)
Rhododendron caeruleoglaucum Balf. f. & Forrest Synonym M TRO
Rhododendron caeruleum H. Lév. Synonym M TRO
Rhododendron caesium Hutch. Accepted M TRO
Rhododendron caespitosum Sleumer Unresolved L WCSP (in review)
Rhododendron caespitulum P.C. Tam Synonym M TRO
Rhododendron calceolarioides Wernham Unresolved L WCSP (in review)
Rhododendron calcicola Millais Unresolved L WCSP (in review)
Rhododendron calciphilum Hutch. & Kingdon-Ward Synonym M TRO
Rhododendron calendulaceum (Michx.) Torr. Accepted L TRO
Rhododendron calendulaceum f. calendulaceum Synonym L TRO
Rhododendron californicum Hook. Synonym M TRO
Rhododendron caliginis Kores Unresolved L WCSP (in review)
Rhododendron calleryi Planch. Synonym M TRO
Rhododendron callichilioides Wernham Unresolved L WCSP (in review)
Rhododendron callimorphum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron callimorphum var. callimorphum Synonym L TRO
Rhododendron callimorphum var. myiagrum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron calocodon Ridl. Unresolved L WCSP (in review)
Rhododendron calophyllum Nutt. Synonym M TRO
Rhododendron calophytum Franch. Accepted M TRO
Rhododendron calophytum var. calophytum Synonym L TRO
Rhododendron calophytum var. jinfuense Fang & W.K. Hu Accepted L TRO
Rhododendron calophytum subsp. jinfuense Fang ex M.Y. Fang Synonym L TRO
Rhododendron calophytum var. openshawianum (Rehder & E.H. Wilson) D.F. Chamb. Accepted L TRO
Rhododendron calosanthes Sleumer Unresolved L WCSP (in review)
Rhododendron calostrotum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron calostrotum var. calciphilum (Hutch. & Kingdon-Ward) Davidian Accepted L TRO
Rhododendron calostrotum subsp. calostrotum Synonym L TRO
Rhododendron calostrotum var. calostrotum Synonym L TRO
Rhododendron calostrotum subsp. keleticum (Balf. f. & Forrest) Cullen Synonym L TRO
Rhododendron calostrotum subsp. riparioides Cullen Synonym L TRO
Rhododendron calostrotum var. riparioides (Cullen) R.C. Fang Synonym L TRO
Rhododendron calostrotum subsp. riparium (Kingdon-Ward) Cullen Synonym L TRO
Rhododendron caloxanthum Balf. f. & Farrer Synonym M TRO
Rhododendron calvescens Balf. f. & Forrest Accepted M TRO
Rhododendron calvescens var. calvescens Synonym L TRO
Rhododendron calvescens var. duseimatum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron calycinum Planch. Unresolved L WCSP (in review)
Rhododendron camelliiflorum Hook. f. Accepted M TRO
Rhododendron campanulatum D. Don Accepted M TRO
Rhododendron campanulatum var. aeruginosum (Hook. f.) Cowan & Davidian Synonym L TRO
Rhododendron campanulatum subsp. aeruginosum (Hook. f.) D.F. Chamb. Accepted L TRO
Rhododendron campanulatum subsp. campanulatum Synonym L TRO
Rhododendron campbelliae Hook. f. Synonym M TRO
Rhododendron campylocarpum Hook. f. Accepted M TRO
Rhododendron campylocarpum subsp. caloxanthum (Balf. f. & Farrer) D.F. Chamb. Accepted L TRO
Rhododendron campylocarpum subsp. campylocarpum Synonym L TRO
Rhododendron campylocarpum var. orbiculare Demoly Synonym L TRO
Rhododendron campylocarpum subsp. telopeum (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron campylogynum Franch. Accepted M TRO
Rhododendron campylogynum var. celsum Davidian Synonym L TRO
Rhododendron campylogynum var. charapoeum (Balf. f. & Farrer) Davidian Accepted L TRO
Rhododendron campylogynum var. cremastum (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron campylogynum var. myrtilloides (Balf. f. & Kingdon-Ward) Davidian Synonym L TRO
Rhododendron camtschaticum Pall. Accepted M TRO
Rhododendron camtschaticum subsp. camtschaticum Synonym L TRO
Rhododendron camtschaticum var. glandulosum (Standl. ex Small) B. Boivin Accepted L TRO
Rhododendron camtschaticum var. pumilum E.A. Busch Synonym L TRO
Rhododendron canadense (L.) Torr. Accepted M TRO
Rhododendron canadense f. canadense Synonym L TRO
Rhododendron candelabrum Hook.f. Unresolved L WCSP (in review)
Rhododendron candidapiculatum Wernham Unresolved L WCSP (in review)
Rhododendron candidum Rehder Unresolved L WCSP (in review)
Rhododendron canescens (Michx.) Sweet Accepted L TRO
Rhododendron cantabile Balf. f. ex Hutch. Synonym M TRO
Rhododendron capellae Kores Unresolved L WCSP (in review)
Rhododendron capitatum Maxim. Accepted M TRO
Rhododendron cardiobasis Sleumer Synonym M TRO
Rhododendron cardioeides Balf. f. & Forrest Synonym M TRO
Rhododendron × carnarvonii Sweet Unresolved L WCSP (in review)
Rhododendron carneum Hutch. Unresolved L WCSP (in review)
Rhododendron carolinianum Rehder Accepted M TRO
Rhododendron carrii Sleumer Unresolved L WCSP (in review)
Rhododendron carringtoniae F.Muell. Unresolved L WCSP (in review)
Rhododendron carstensense Wernham Unresolved L WCSP (in review)
Rhododendron × cartonianum DC. Unresolved L WCSP (in review)
Rhododendron caryophyllum Hayata Synonym M TRO
Rhododendron catacosmum Balf. f. ex Tagg Accepted M TRO
Rhododendron catanduanense Merr. ex H.F.Copel. Unresolved L WCSP (in review)
Rhododendron catapastum Balf. f. & Forrest Synonym M TRO
Rhododendron catawbiense Michx. Accepted M TRO
Rhododendron catawbiense f. catawbiense Synonym L TRO
Rhododendron catesbaei J.Forbes Unresolved L WCSP (in review)
Rhododendron catesbaeum Dum.Cours. Unresolved L WCSP (in review)
Rhododendron caucaseum Sims Unresolved L WCSP (in review)
Rhododendron caucasicum Pall. Unresolved L WCSP (in review)
Rhododendron cavaleriei H. Lév. Accepted M TRO
Rhododendron cavaleriei var. chaffanjonii H. Lév. Synonym L TRO
Rhododendron × cavronii André Unresolved L WCSP (in review)
Rhododendron celebicum DC. Unresolved L WCSP (in review)
Rhododendron cephalanthoides Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron cephalanthum Franch. Accepted M TRO
Rhododendron cephalanthum subsp. platyphyllum (Balf. f. & W.W. Sm.) Cullen Synonym L TRO
Rhododendron cephalthoides Balf.f. & W.W.Sm. Unresolved L WCSP (in review)
Rhododendron ceraceum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron cerasiflorum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron cerasinum Tagg Accepted M TRO
Rhododendron cerinum Balf. f. & Forrest Synonym M TRO
Rhododendron cernuum Sleumer Unresolved L WCSP (in review)
Rhododendron cerochitum Balf.f. & Forrest Unresolved L WCSP (in review)
Rhododendron chaetomallum Balf. f. & Forrest Synonym M TRO
Rhododendron chaetomallum var. glaucescens Tagg & Forrest Synonym L TRO
Rhododendron chaetomallum var. hemigymnum Tagg & Forrest Synonym L TRO
Rhododendron chaffanjonii H.Lév. ex Hutch. Unresolved L WCSP (in review)
Rhododendron chalarocladum Balf. f. & Forrest Synonym M TRO
Rhododendron chamaecistus L. Synonym M WCSP (in review)
Rhododendron chamaepitys Sleumer Unresolved L WCSP (in review)
Rhododendron chamaethomsonii (Tagg) Cowan & Davidian Accepted M TRO
Rhododendron chamaethomsonii var. chamaedoron D.F. Chamb. Accepted L TRO
Rhododendron chamaethomsonii var. chamaethauma (Tagg) Cowan & Davidian Accepted L TRO
Rhododendron chamaethomsonii var. chamaethomsonii Synonym L TRO
Rhododendron chamaetortum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron chamaezelum Balf. f. & Forrest Accepted M TRO
Rhododendron chamberlainii Craven Unresolved L WCSP (in review)
Rhododendron chameunum Balf. f. & Forrest Synonym M TRO
Rhododendron championiae Hook. Accepted M TRO
Rhododendron championiae var. championiae Synonym L TRO
Rhododendron championiae var. ovatifolium P.C. Tam Synonym L TRO
Rhododendron changii (W.P. Fang) W.P. Fang Accepted M TRO
Rhododendron chaoanense T.C. Wu & P.C. Tam Accepted M TRO
Rhododendron chapaense Dop Synonym M TRO
Rhododendron chapmanii (Alph. Wood) A. Gray Accepted M TRO
Rhododendron × charadzeae A.P.Khokhr. & Mazurenko Unresolved L WCSP (in review)
Rhododendron charapoeum Balf. f. & Farrer Synonym M TRO
Rhododendron charianthum Hutch. Synonym M TRO
Rhododendron charidotes Balf. f. & Farrer Synonym M TRO
Rhododendron charitopes Balf. f. & Farrer Accepted M TRO
Rhododendron charitopes subsp. charitopes Synonym L TRO
Rhododendron charitopes subsp. tsangpoense (Kingdon-Ward) Cullen Accepted L TRO
Rhododendron charitostreptum Balf.f. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron chartophyllum Franch. Synonym M TRO
Rhododendron chartophyllum f. praecox Diels Synonym L TRO
Rhododendron chasmanthoides Balf. f. & Forrest Synonym M TRO
Rhododendron chasmanthum Diels Synonym M TRO
Rhododendron chawchiense Balf. f. & Farrer Synonym M TRO
Rhododendron cheilanthum Balf. f. & Forrest Synonym M TRO
Rhododendron chengianum W.P. Fang Synonym M TRO
Rhododendron chengshienianum W.P. Fang Synonym M TRO
Rhododendron chevalieri Dop ex A.Chev. Unresolved L WCSP (in review)
Rhododendron chienianum W.P. Fang Synonym M TRO
Rhododendron chihsinianum Chun & W.P. Fang Accepted M TRO
Rhododendron chilanshanense Kurashige Accepted M TRO
Rhododendron chionanthum Tagg & Forrest Accepted M TRO
Rhododendron chionophyllum Diels Synonym M TRO
Rhododendron chlanidotum Balf. f. & Forrest Synonym M TRO
Rhododendron chloranthum Balf. f. & Forrest Synonym M TRO
Rhododendron chlorops Stair Unresolved L WCSP (in review)
Rhododendron chlorops Cowan Unresolved L WCSP (in review)
Rhododendron christi F.Först. Unresolved L WCSP (in review)
Rhododendron christianae Sleumer Unresolved L WCSP (in review)
Rhododendron chrysanthum Pall. Synonym M TRO
Rhododendron chryseum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron chrysocalyx H. Lév. & Vaniot Accepted M TRO
Rhododendron chrysocalyx var. chrysocalyx Synonym L TRO
Rhododendron chrysocalyx var. xiushanense (W.P. Fang) M.Y. He Accepted L TRO
Rhododendron chrysodoron Tagg ex Hutch. Accepted M TRO
Rhododendron chrysodorum W.W.Sm. ex Stair Unresolved L WCSP (in review)
Rhododendron chrysolepis Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron chrysopeplon Sleumer Unresolved L WCSP (in review)
Rhododendron × chukirishima T.Yamaz. Unresolved L WCSP (in review)
Rhododendron chunienii Chun & W.P. Fang Accepted M TRO
Rhododendron chunii W.P. Fang Accepted M TRO
Rhododendron ciliatopedicellatum Hayata Synonym M TRO
Rhododendron ciliatum Hook. f. Accepted M TRO
Rhododendron ciliicalyx Franch. Accepted M TRO
Rhododendron ciliicalyx subsp. ciliicalyx Synonym L TRO
Rhododendron ciliicalyx subsp. lyi (H. Lév.) R.C. Fang Accepted L TRO
Rhododendron ciliilobum Sleumer Unresolved L WCSP (in review)
Rhododendron ciliipes Hutch. Accepted M TRO
Rhododendron × cilipinense S.Bowler Unresolved L WCSP (in review)
Rhododendron cinchoniflorum Sleumer Unresolved L WCSP (in review)
Rhododendron cinerascens Sleumer Unresolved L WCSP (in review)
Rhododendron cinereoserratum P.C. Tam Synonym M TRO
Rhododendron cinnabarinum Hook. f. Accepted M TRO
Rhododendron cinnabarinum subsp. cinnabarinum Synonym L TRO
Rhododendron cinnabarinum var. cinnabarinum Synonym L TRO
Rhododendron cinnabarinum var. purpurellum Cowan Synonym L TRO
Rhododendron cinnabarinum var. roylei (Hook. f.) Hutch. Accepted L TRO
Rhododendron cinnabarinum subsp. tamaense (Davidian) Cullen Accepted L TRO
Rhododendron cinnabarinum subsp. xanthocodon (Hutch.) Cullen Synonym L TRO
Rhododendron cinnamomeum Wall. ex G. Don Synonym M TRO
Rhododendron circinnatum Cowan & Kingdon-Ward Accepted M TRO
Rhododendron cistiflorum St.-Lag. Unresolved L WCSP (in review)
Rhododendron citriniflorum Balf. f. & Forrest Accepted M TRO
Rhododendron citriniflorum subsp. aureolum Cowan Synonym L TRO
Rhododendron citriniflorum subsp. citriniflorum Synonym L TRO
Rhododendron citriniflorum var. citriniflorum Synonym L TRO
Rhododendron citriniflorum subsp. horaeum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron citriniflorum var. horaeum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron citrinum Hassk. Unresolved L WCSP (in review)
Rhododendron clementinae Forrest Accepted M TRO
Rhododendron clementinae subsp. clementinae Synonym L TRO
Rhododendron clementis Merr. Unresolved L WCSP (in review)
Rhododendron × clivianum J.Jay Sm. Unresolved L WCSP (in review)
Rhododendron × clivianum auct. Unresolved L WCSP (in review)
Rhododendron clivicola Balf.f. & W.W.Sm. Unresolved L WCSP (in review)
Rhododendron clivicolum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron cloiophorum Balf. f. & Forrest Synonym M TRO
Rhododendron cloiophorum subsp. asmenistum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron cloiophorum subsp. leucopetalum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron cloiophorum var. leucopetalum (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron cloiophorum subsp. mannophorum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron cloiophorum var. mannophorum (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron cloiophorum subsp. roseotinctum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron cloiophorum var. roseotinctum (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron coccinopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron codonanthum Balf. f. & Forrest Accepted M TRO
Rhododendron coelicum Balf. f. & Farrer Accepted M TRO
Rhododendron coeloneurum Diels Accepted M TRO
Rhododendron coelorum Wernham Unresolved L WCSP (in review)
Rhododendron coenenii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron colemanii R.F.Mill. Unresolved L WCSP (in review)
Rhododendron collettianum Aitch. & Hemsl. Accepted M TRO
Rhododendron colletum Balf. f. & Forrest Synonym M TRO
Rhododendron columbianum (Piper) Harmaja Accepted M TRO
Rhododendron comisteum Balf. f. & Forrest Accepted M TRO
Rhododendron commodum Balf. f. & Forrest Synonym M TRO
Rhododendron commonae F.Först. Unresolved L WCSP (in review)
Rhododendron commutatum Sleumer Unresolved L WCSP (in review)
Rhododendron compactum Hutch. Synonym M TRO
Rhododendron comparabile Sleumer Unresolved L WCSP (in review)
Rhododendron complexum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron comptum C.H.Wright Unresolved L WCSP (in review)
Rhododendron concatenans Hutch. Synonym M TRO
Rhododendron concinnoides Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron concinnum Hemsl. Accepted M TRO
Rhododendron concinnum var. benthamianum (Hemsl.) Davidian Synonym L TRO
Rhododendron concinnum f. laetevirens Cowan Synonym L TRO
Rhododendron concinnum var. lepidanthum (Rehder & E.H. Wilson) Rehder Synonym L TRO
Rhododendron concinnum var. pseudoyanthinum (Balf. f. & Hutch.) Davidian Synonym L TRO
Rhododendron confertissimum Nakai Synonym M TRO
Rhododendron coniferum Wernham Unresolved L WCSP (in review)
Rhododendron convexum Sleumer Unresolved L WCSP (in review)
Rhododendron cookeanum Davidian Synonym M TRO
Rhododendron coombense Hemsl. Synonym M TRO
Rhododendron cooperi Balf.f. Unresolved L WCSP (in review)
Rhododendron copelandii Merr. Unresolved L WCSP (in review)
Rhododendron cordatum H. Lév. Synonym M TRO
Rhododendron cordifolium Dehnh. Unresolved L WCSP (in review)
Rhododendron coreanum Rehder Unresolved L WCSP (in review)
Rhododendron coriaceum Franch. Accepted M TRO
Rhododendron coriifolium Sleumer Unresolved L WCSP (in review)
Rhododendron cornu-bovis Sleumer Unresolved L WCSP (in review)
Rhododendron correoides J.J.Sm. Unresolved L WCSP (in review)
Rhododendron corruscum Ridl. Unresolved L TRO
Rhododendron coryanum Tagg & Forrest Accepted M TRO
Rhododendron coryi Shinners Accepted M TRO
Rhododendron coryphaeum Balf. f. & Forrest Synonym M TRO
Rhododendron cosmetum Balf. f. & Forrest Synonym M TRO
Rhododendron costulatum Franch. Synonym M TRO
Rhododendron cowanianum Davidian Unresolved L WCSP (in review)
Rhododendron coxianum Davidian Unresolved L WCSP (in review)
Rhododendron crassifolium Stapf Unresolved L WCSP (in review)
Rhododendron crassimedium P.C. Tam Accepted M TRO
Rhododendron crassinervium Ridl. Unresolved L WCSP (in review)
Rhododendron crassistylum M.Y. He Accepted M TRO
Rhododendron crassum Franch. Synonym M TRO
Rhododendron crebreflorum Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron cremastum Balf. f. & Forrest Synonym M TRO
Rhododendron cremnastes Balf.f. & Farrer Unresolved L WCSP (in review)
Rhododendron cremnophilum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron crenatum H. Lév. Synonym M TRO
Rhododendron crenulatum Hutch. ex Sleumer Unresolved L WCSP (in review)
Rhododendron cretaceum P.C. Tam Accepted M TRO
Rhododendron crinigerum Franch. Accepted M TRO
Rhododendron crinigerum var. crinigerum Synonym L TRO
Rhododendron crispiflorum Planch. Unresolved L WCSP (in review)
Rhododendron croceum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron crouxii Rehder Unresolved L WCSP (in review)
Rhododendron cruentum H. Lév. Synonym M TRO
Rhododendron cruttwellii Sleumer Unresolved L WCSP (in review)
Rhododendron cubittii Hutch. Unresolved L WCSP (in review)
Rhododendron cucullatum Hand.-Mazz. Synonym M TRO
Rhododendron cuffeanum Craib ex Hutch. Unresolved L WCSP (in review)
Rhododendron culminicolum F.Muell. Unresolved L WCSP (in review)
Rhododendron cumberlandense E.L. Braun Accepted M TRO
Rhododendron cuneatum W.W. Sm. Accepted M TRO
Rhododendron cuneifolium Stapf Unresolved L WCSP (in review)
Rhododendron cunninghamii K.Koch Unresolved L WCSP (in review)
Rhododendron cuprescens Nitz. Synonym M TRO
Rhododendron curranii Merr. Unresolved L WCSP (in review)
Rhododendron × curtisii T.Moore Unresolved L WCSP (in review)
Rhododendron curviflorum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron cuspidellum Sleumer Unresolved L WCSP (in review)
Rhododendron cuthbertii Small Unresolved L WCSP (in review)
Rhododendron cyanocarpum (Franch.) Franch. ex W.W. Sm. Accepted M TRO
Rhododendron cyanocarpum var. eriphyllum Tagg Synonym L TRO
Rhododendron cyatheicola Sleumer Unresolved L WCSP (in review)
Rhododendron cyclium Balf. f. & Forrest Synonym M TRO
Rhododendron cymbomorphum Balf. f. & Forrest Synonym L TRO
Rhododendron cyrtophyllum Wernham Unresolved L WCSP (in review)
Rhododendron dabanshanense Fang ex S.X. Wang Synonym M TRO
Rhododendron dachengense G.Z. Li Accepted M TRO
Rhododendron dachengense var. dachengense Synonym L TRO
Rhododendron dachengense var. scopulum G.Z. Li Synonym L TRO
Rhododendron dahuricum L. ex Dippel Unresolved L WCSP (in review)
Rhododendron daiyuenshanicum P.C. Tam Synonym M TRO
Rhododendron daiyunicum P.C. Tam Synonym M TRO
Rhododendron dalhousieae Hook. f. Accepted M TRO
Rhododendron dalhousieae var. dalhousieae Synonym L TRO
Rhododendron dalhousieae var. rhabdotum (Balf. f. & R.E. Cooper) Cullen Accepted L TRO
Rhododendron damascenum Balf. f. & Forrest Synonym M TRO
Rhododendron danbaense L.C. Hu Accepted M TRO
Rhododendron danielsianum Planch. Synonym M TRO
Rhododendron daphniflorum Diels Synonym M TRO
Rhododendron dasycladoides Hand.-Mazz. Accepted M TRO
Rhododendron dasycladum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron dasylepis Schltr. Unresolved L WCSP (in review)
Rhododendron dasypetalum Balf. f. & Forrest Accepted M TRO
Rhododendron datiandingense Z.J. Feng Accepted M TRO
Rhododendron dauricum L. Accepted M WCSP (in review)
Rhododendron dauricum var. ciliatum (Nakai) E.H. Wilson Accepted L TRO
Rhododendron dauricum var. mucronulatum (Turcz.) Maxim. Synonym L TRO
Rhododendron dauricum subsp. mucronulatum (Turcz.) Vorosch. Synonym L TRO
Rhododendron davidii Franch. Accepted M TRO
Rhododendron davidsonianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron × davisianum R.I.Milne Unresolved L WCSP (in review)
Rhododendron davisii Koehne Unresolved L WCSP (in review)
Rhododendron dawuense H.P. Yang Accepted M TRO
Rhododendron dayaoshanense L.M. Gao & D.Z. Li Accepted M TRO
Rhododendron dayiense M.Y. He Accepted M TRO
Rhododendron decandrum (Makino) Makino Unresolved L WCSP (in review)
Rhododendron deciduum Andrews ex Steud. Unresolved L WCSP (in review)
Rhododendron decipiens Lacaita Unresolved L WCSP (in review)
Rhododendron declivatum Ching & H.P. Yang Accepted M TRO
Rhododendron decorum Franch. Accepted M TRO
Rhododendron decorum subsp. decorum Synonym L TRO
Rhododendron decorum subsp. diaprepes (Balf. f. & W.W. Sm.) T.L. Ming Accepted L TRO
Rhododendron decumbens D. Don ex G. Don Synonym M TRO
Rhododendron deflexum Griff. Unresolved L WCSP (in review)
Rhododendron degronianum Carrière Unresolved L WCSP (in review)
Rhododendron dekatanum Cowan Accepted M TRO
Rhododendron delavayi Franch. Accepted M TRO
Rhododendron delavayi var. delavayi Synonym L TRO
Rhododendron delavayi var. peramoenum (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron deleiense Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron delicatulum Sleumer Unresolved L WCSP (in review)
Rhododendron dendricola Hutch. Accepted M TRO
Rhododendron dendritrichum Balf. f. & Forrest Synonym M TRO
Rhododendron dendrocharis Franch. Accepted M TRO
Rhododendron densifolium K.M. Feng Accepted M TRO
Rhododendron dentampullum Chun ex P.C. Tam Synonym M TRO
Rhododendron denudatum H. Lév. Accepted M TRO
Rhododendron depile Balf. f. & Forrest Synonym M TRO
Rhododendron desquamatum Balf. f. & Forrest Synonym M TRO
Rhododendron detersile Franch. Accepted M TRO
Rhododendron detonsum Balf. f. & Forrest Accepted M TRO
Rhododendron × detonsum Balf. f. & Forrest Unresolved L TRO
Rhododendron detzneranum Sleumer Unresolved L WCSP (in review)
Rhododendron devrieseanum Koord. Unresolved L WCSP (in review)
Rhododendron diacritum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron dianthiflorum Millais Unresolved L WCSP (in review)
Rhododendron dianthosmum Sleumer Unresolved L WCSP (in review)
Rhododendron diaprepes Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron dichroanthum Diels Accepted M TRO
Rhododendron dichroanthum subsp. apodectum (Balf. f. & W.W. Sm.) Cowan Accepted L TRO
Rhododendron dichroanthum var. apodectum (Balf. f. & W.W. Sm.) T.L. Ming Synonym L TRO
Rhododendron dichroanthum subsp. dichroanthum Synonym L TRO
Rhododendron dichroanthum subsp. herpesticum (Balf. f. & Kingdon-Ward) Cowan Synonym L TRO
Rhododendron dichroanthum subsp. scyphocalyx (Balf. f. & Forrest) Cowan Accepted L TRO
Rhododendron dichroanthum var. scyphocalyx (Balf. f. & Forrest) T.L. Ming Synonym L TRO
Rhododendron dichroanthum subsp. septentrionale Cowan Accepted L TRO
Rhododendron dichroanthum var. septentrionale (Cowan) T.L. Ming Synonym L TRO
Rhododendron dichropeplum Balf. f. & Forrest Synonym M TRO
Rhododendron dictyotum Balf. f. ex Tagg Synonym M TRO
Rhododendron didymum Balf. f. & Forrest Synonym M TRO
Rhododendron dielsianum Schltr. Unresolved L WCSP (in review)
Rhododendron dignabile Cowan Accepted M TRO
Rhododendron dilatatum Miq. Unresolved L WCSP (in review)
Rhododendron × dimidiatum Balf.f. Unresolved L WCSP (in review)
Rhododendron dimitrum Balf. f. & Forrest Accepted M TRO
Rhododendron × diphrocalyx Balf. f. Accepted M TRO
Rhododendron discolor Franch. Accepted M TRO
Rhododendron disterigmoides Sleumer Unresolved L WCSP (in review)
Rhododendron diversipilosum (Nakai) Harmaja Accepted M TRO
Rhododendron docimum Balf.f. ex Tagg Unresolved L WCSP (in review)
Rhododendron doctersii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron dolerum Balf. f. & Forrest Synonym M TRO
Rhododendron doshongense Tagg Synonym M TRO
Rhododendron drumonium Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron dryophyllum Balf. f. & Forrest Synonym M TRO
Rhododendron dubium King & Gamble Unresolved L WCSP (in review)
Rhododendron duclouxii H. Lév. Accepted M TRO
Rhododendron dumicola Tagg & Forrest Accepted M TRO
Rhododendron dumosulum Balf. f. & Forrest Synonym M TRO
Rhododendron dunnii E.H. Wilson Synonym M TRO
Rhododendron durionifolium Becc. Unresolved L WCSP (in review)
Rhododendron duseimatum Balf. f. & Forrest Synonym M TRO
Rhododendron dutartrei Danet Unresolved L WCSP (in review)
Rhododendron eastmanii Kron & Creel Unresolved L WCSP (in review)
Rhododendron ebianense M.Y. Fang Accepted M TRO
Rhododendron eclecteum Balf. f. & Forrest Accepted M TRO
Rhododendron eclecteum var. brachyandrum (Balf. f. & Forrest) Cowan & Davidian Synonym L TRO
Rhododendron eclecteum var. eclecteum Synonym L TRO
Rhododendron edanoi Merr. & Quisumb. Unresolved L WCSP (in review)
Rhododendron edgarianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron edgarii Gamble Unresolved L WCSP (in review)
Rhododendron edgeworthii Hook. f. Accepted M TRO
Rhododendron eheinense M.Y.He & Z.J.Zhao Unresolved L WCSP (in review)
Rhododendron elaeagnoides Hook.f. Unresolved L WCSP (in review)
Rhododendron elegans Ridl. Unresolved L WCSP (in review)
Rhododendron elegantulum Tagg & Forrest Accepted M TRO
Rhododendron elliottii Watt ex Brandis Unresolved L TRO
Rhododendron ellipticum Hoffmanns. Unresolved L WCSP (in review)
Rhododendron ellipticum Maxim. Unresolved L WCSP (in review)
Rhododendron ellipticum var. leptosanthum (Hayata) S.S. Ying Synonym L TRO
Rhododendron emaculatum Balf. f. & Forrest Synonym M TRO
Rhododendron emarginatum Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron emarginatum var. eriocarpum K.M. Feng Synonym L TRO
Rhododendron × emasculum W.Watson Unresolved L WCSP (in review)
Rhododendron englerianum Koord. Unresolved L WCSP (in review)
Rhododendron × enneandrum DC. Unresolved L WCSP (in review)
Rhododendron × enomotoi T.Yamaz. Unresolved L WCSP (in review)
Rhododendron epapillatum Balf. f. & R.E. Cooper Synonym M TRO
Rhododendron epilosum Argent Unresolved L WCSP (in review)
Rhododendron epipastum Balf. f. & Forrest Synonym M TRO
Rhododendron erastum Balf. f. & Forrest Accepted M TRO
Rhododendron eriandrum H. Lév. ex Hutch. Synonym M TRO
Rhododendron ericoides H.Low ex Hook.f. Unresolved L WCSP (in review)
Rhododendron erileucum Balf. f. & Forrest Synonym M TRO
Rhododendron eriobotryoides Xiang Chen & Jia Y.Huang Unresolved L WCSP (in review)
Rhododendron eriocarpum Nakai Unresolved L WCSP (in review)
Rhododendron eriogynum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron eritimum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron eritimum subsp. chawchiense (Balf. f. & Farrer) Tagg Synonym L TRO
Rhododendron eritimum subsp. gymnogynum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eritimum subsp. heptamerum (Balf. f.) Tagg Synonym L TRO
Rhododendron eritimum subsp. persicinum (Hand.-Mazz.) Tagg Synonym L TRO
Rhododendron erosipetalum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron erosum Cowan Accepted M TRO
Rhododendron erubescens Hutch. Synonym M TRO
Rhododendron erythrocalyx Balf. f. & Forrest Accepted M TRO
Rhododendron × erythrocalyx Balf. f. & Forrest Unresolved L TRO
Rhododendron erythrocalyx subsp. beimaense (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron erythrocalyx subsp. docimum Balf. f. ex Tagg Synonym L TRO
Rhododendron erythrocalyx subsp. eucallum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron erythrocalyx subsp. truncatulum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron esetulosum Balf. f. & Forrest Accepted M TRO
Rhododendron esquirolii H. Lév. Synonym M TRO
Rhododendron euanthum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron eucallum Balf. f. & Forrest Synonym L TRO
Rhododendron euchaites Balf. f. & Forrest Synonym M TRO
Rhododendron euchroum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron eudoxum Balf. f. & Forrest Accepted M TRO
Rhododendron eudoxum subsp. asteium (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum subsp. brunneifolium (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum var. brunneifolium (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron eudoxum subsp. epipastum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum subsp. eudoxum Synonym L TRO
Rhododendron eudoxum var. eudoxum Synonym L TRO
Rhododendron eudoxum subsp. glaphyrum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum subsp. mesopolium (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum var. mesopolium (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron eudoxum subsp. pothinum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum subsp. temenium (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron eudoxum subsp. trichomiscum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron euonymifolium H. Lév. Synonym M TRO
Rhododendron eurysiphon Tagg & Forrest Accepted M TRO
Rhododendron evelyneae Danet Unresolved L WCSP (in review)
Rhododendron exasperatum Tagg Accepted M TRO
Rhododendron excellens Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron excelsum A.Chev. Unresolved L WCSP (in review)
Rhododendron eximium Nutt. Unresolved L WCSP (in review)
Rhododendron exquisitum Hutch. Synonym M TRO
Rhododendron extrorsum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron exuberans (Sleumer) Argent Unresolved L WCSP (in review)
Rhododendron eymae Sleumer Unresolved L WCSP (in review)
Rhododendron faberi Hemsl. Accepted M TRO
Rhododendron faberi subsp. faberi Synonym L TRO
Rhododendron faberi subsp. prattii (Franch.) D.F. Chamb. Accepted L TRO
Rhododendron faberioides Balf. f. Synonym M TRO
Rhododendron facetum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron faithiae Chun Accepted M TRO
Rhododendron falcinellum (P.C. Tam) P.C. Tam Synonym M TRO
Rhododendron falconeri Hook.f. Unresolved L WCSP (in review)
Rhododendron fallacinum Sleumer Unresolved L WCSP (in review)
Rhododendron fangchengense P.C. Tam Accepted M TRO
Rhododendron fargesii Franch. Synonym M TRO
Rhododendron farinosum H. Lév. Accepted M TRO
Rhododendron farrerae Sweet Accepted M WCSP (in review)
Rhododendron farrerae var. leucotrichum Franch. Synonym L TRO
Rhododendron farrerae var. mediocre Diels Synonym L TRO
Rhododendron fastigiatum Franch. Accepted M TRO
Rhododendron fastigifolium (W.P.Lemmon) H.H.Hume Unresolved L WCSP (in review)
Rhododendron faucium D.F. Chamb. Accepted M TRO
Rhododendron fauriae Franch. Unresolved L WCSP (in review)
Rhododendron fauriei Franch. Accepted M TRO
Rhododendron feddei H. Lév. Accepted M TRO
Rhododendron ferrugineum L. Accepted M WCSP (in review)
Rhododendron fictolacteum Balf. f. Synonym M TRO
Rhododendron fictolacteum var. miniforme Davidian Synonym L TRO
Rhododendron filamentosum Wernham Unresolved L WCSP (in review)
Rhododendron × filidactylis R.I.Milne Unresolved L WCSP (in review)
Rhododendron fimbriatum Hutch. Synonym M TRO
Rhododendron fissotectum Balf. f. & Forrest Synonym M TRO
Rhododendron fittianum Balf.f. Unresolved L WCSP (in review)
Rhododendron × fittianum Balf. f. Accepted M TRO
Rhododendron flammeum (Michx.) Sarg. Accepted L TRO
Rhododendron flavantherum Hutch. & Kingdon-Ward Accepted M TRO
Rhododendron flavidum Franch. Accepted M TRO
Rhododendron flavidum var. flavidum Synonym L TRO
Rhododendron flavoflorum T.L. Ming Accepted M TRO
Rhododendron flavorufum Balf. f. & Forrest Synonym M TRO
Rhododendron flavoviride J.J.Sm. Unresolved L WCSP (in review)
Rhododendron flavum (Hoffmanns.) G.Don [Illegitimate] Synonym M WCSP (in review)
Rhododendron fletcherianum Davidian Accepted M TRO
Rhododendron fleuryi Dop ex A.Chev. Unresolved L WCSP (in review)
Rhododendron flinckii Davidian Synonym M TRO
Rhododendron floccigerum Franch. Accepted M TRO
Rhododendron floccigerum var. appropinquans Tagg & Forrest Synonym L TRO
Rhododendron floccigerum subsp. appropinquans (Tagg & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron floribundum Franch. Accepted M TRO
Rhododendron florulentum P.C. Tam Accepted M TRO
Rhododendron flosculum W.P. Fang & G.Z. Li Accepted M TRO
Rhododendron flumineum W.P. Fang & M.Y. He Accepted M TRO
Rhododendron fokienense Franch. Synonym M TRO
Rhododendron fongkaiense C.N. Wu & P.C. Tam Synonym M TRO
Rhododendron fordii Hemsl. Synonym M TRO
Rhododendron formosanum Hemsl. Accepted M TRO
Rhododendron formosum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron formosum Wall. Unresolved L WCSP (in review)
Rhododendron forrestii Balf. f. ex Diels Accepted M TRO
Rhododendron forrestii subsp. forrestii Synonym L TRO
Rhododendron forrestii var. repens (Balf. f. & Forrest) Cowan & Davidian Synonym L TRO
Rhododendron fortunans J.J.Sm. Unresolved L WCSP (in review)
Rhododendron fortunei Lindl. Accepted M TRO
Rhododendron fortunei subsp. discolor (Franch.) D.F. Chamb. Synonym L TRO
Rhododendron fortunei var. houlstonii (Hemsl. & E.H. Wilson) Rehder & E.H. Wilson Synonym L TRO
Rhododendron fortunei var. kwangfuense (Chun & W.P. Fang) G.Z. Li Synonym L TRO
Rhododendron foveolatum Rehder & E.H. Wilson Synonym M TRO
Rhododendron fragariiflorum Kingdon-Ward Accepted M TRO
Rhododendron fragrans DC. Unresolved L WCSP (in review)
Rhododendron fragrans Maxim. Unresolved L WCSP (in review)
Rhododendron fragrans Franch. Unresolved L WCSP (in review)
Rhododendron franchetianum H. Lév. Synonym M TRO
Rhododendron franssenianum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron frey-wysslingii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron fuchsii Sleumer Unresolved L WCSP (in review)
Rhododendron fuchsiiflorum H. Lév. Synonym M TRO
Rhododendron fuchsiifolium H. Lév. Accepted M TRO
Rhododendron fuchsioides Schltr. Unresolved L WCSP (in review)
Rhododendron fulgens Hook. f. Accepted M TRO
Rhododendron × fulvastrum Balf. f. & Forrest Accepted M TRO
Rhododendron fulvastrum subsp. epipastum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron fulvastrum subsp. fulvastrum Synonym L TRO
Rhododendron fulvastrum var. gilvum (Cowan) Davidian Synonym L TRO
Rhododendron fulvastrum subsp. mesopolium (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron fulvastrum subsp. trichomiscum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron fulvastrum subsp. trichophlebium (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron fulvoides Balf. f. & Forrest Synonym M TRO
Rhododendron fulvum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron fulvum subsp. fulvoides (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron fulvum subsp. fulvum Synonym L TRO
Rhododendron fumidum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron furbishii (W.P.Lemmon & McKay) H.H.Hume Unresolved L WCSP (in review)
Rhododendron × furbishii (W.P.Lemmon & McKay) L.C.Leach Unresolved L WCSP (in review)
Rhododendron fuscipilum M.Y. He Accepted M TRO
Rhododendron fuyuanense Zeng H. Yang Accepted M TRO
Rhododendron galactinum Balf. f. ex Tagg Accepted M TRO
Rhododendron galioides J.J.Sm. Unresolved L WCSP (in review)
Rhododendron gandavense Rehder Unresolved L WCSP (in review)
Rhododendron gannanense Z.C. Feng & X.G. Sun Accepted M TRO
Rhododendron gardenia Schltr. Unresolved L WCSP (in review)
Rhododendron gaultheriifolium J.J.Sm. Unresolved L WCSP (in review)
Rhododendron gaultherioides Boiss. & Balansa Unresolved L WCSP (in review)
Rhododendron gaultherioides Boiss. Unresolved L WCSP (in review)
Rhododendron gemmiferum M.N. Philipson & Philipson Accepted M TRO
Rhododendron genestierianum Forrest Accepted M TRO
Rhododendron × geraldii (auct.) Ivens Unresolved L WCSP (in review)
Rhododendron geraldii (Franch.) D.F.Chamb. Unresolved L WCSP (in review)
Rhododendron germanicum Hoppe Unresolved L WCSP (in review)
Rhododendron gibbsiae J.J.Sm. Unresolved L WCSP (in review)
Rhododendron gibsonii Paxton Unresolved L WCSP (in review)
Rhododendron gideonii Argent Unresolved L WCSP (in review)
Rhododendron giganteum Forrest ex Tagg Synonym M TRO
Rhododendron giganteum var. seminudum Tagg & Forrest Synonym L TRO
Rhododendron gilliardii Sleumer Unresolved L WCSP (in review)
Rhododendron giraudiasii H. Lév. Synonym M TRO
Rhododendron giulianettii Lauterb. Unresolved L WCSP (in review)
Rhododendron glabratum Hoppe Unresolved L WCSP (in review)
Rhododendron glabrifilum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron glabriflorum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron × gladwynense M.G.Henry Unresolved L WCSP (in review)
Rhododendron glanduliferum Franch. Accepted M TRO
Rhododendron glandulostylum W.P. Fang & M.Y. He Synonym M TRO
Rhododendron glandulosum (Standl. ex Small) Millais Synonym M TRO
Rhododendron glaphyrum Balf. f. & Forrest Synonym M TRO
Rhododendron glaphyrum var. dealbatum (Cowan) Davidian Synonym L TRO
Rhododendron glaucaenum Biswas Unresolved L WCSP (in review)
Rhododendron glaucoaureum Balf. f. & Forrest Synonym M TRO
Rhododendron glaucopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron glaucophyllum Rehder Unresolved L WCSP (in review)
Rhododendron glaucophyllum var. tubiforme Cowan & Davidian Synonym L TRO
Rhododendron glaucophyllum subsp. tubiforme (Cowan & Davidian) D.G. Long Synonym L TRO
Rhododendron glaucum G.Don Unresolved L WCSP (in review)
Rhododendron glaucum Hook.f. Unresolved L WCSP (in review)
Rhododendron glaucum (Lam.) Sweet Unresolved L WCSP (in review)
Rhododendron glischroides Tagg & Forrest Unresolved L WCSP (in review)
Rhododendron glischrum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron glischrum var. adenosum Cowan & Davidian Synonym L TRO
Rhododendron glischrum subsp. glischrum Synonym L TRO
Rhododendron glischrum subsp. rude (Tagg & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron globigerum Balf. f. & Forrest Synonym M TRO
Rhododendron gloeoblastum Balf. f. & Forrest Synonym M TRO
Rhododendron glomerulatum Hutch. Synonym M TRO
Rhododendron gloxiniiflorum Millais Unresolved L WCSP (in review)
Rhododendron gnaphalocarpum Hayata Synonym M TRO
Rhododendron gologense C.J. Xu & Z.J. Zhao Accepted M TRO
Rhododendron gonggashanense W.K. Hu Accepted M TRO
Rhododendron gongshanense T.L. Ming Accepted M TRO
Rhododendron goodenoughii Sleumer Unresolved L WCSP (in review)
Rhododendron goreri Davidian Unresolved L WCSP (in review)
Rhododendron gorumense Schltr. Unresolved L WCSP (in review)
Rhododendron × gowenianum Sweet Unresolved L WCSP (in review)
Rhododendron goyozanense (M.Kikuchi) Craven Unresolved L WCSP (in review)
Rhododendron gracile H.Low ex Lindl. Unresolved L WCSP (in review)
Rhododendron gracilentum F.Muell. Unresolved L WCSP (in review)
Rhododendron gracilescens (Nakai) Maek. Unresolved L WCSP (in review)
Rhododendron gracilipes Franch. Synonym M TRO
Rhododendron grande Wight Accepted M TRO
Rhododendron gratiosum P.C. Tam Synonym M TRO
Rhododendron gratum T.L. Ming Synonym M TRO
Rhododendron graveolens W.Bull Unresolved L WCSP (in review)
Rhododendron gregarium Sleumer Unresolved L WCSP (in review)
Rhododendron griersonianum Balf. f. & Forrest Accepted M TRO
Rhododendron griffithianum Wight Accepted M TRO
Rhododendron griffithianum var. aucklandii (Hook. f.) Hook. Synonym L TRO
Rhododendron groenlandicum (Oeder) Kron & Judd Synonym M TRO
Rhododendron grothausii Davidian Unresolved L WCSP (in review)
Rhododendron guangnanense R.C. Fang Accepted M TRO
Rhododendron guihainianum G.Z. Li Accepted M TRO
Rhododendron guizhongense G.Z. Li Accepted M TRO
Rhododendron guizhouense M.Y. Fang Accepted M TRO
Rhododendron gymnanthum Diels Synonym M TRO
Rhododendron gymnocarpum Balf. f. ex Tagg Synonym M TRO
Rhododendron gymnogynum Balf. f. & Forrest Synonym M TRO
Rhododendron gymnomiscum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron habbemae Koord. Unresolved L WCSP (in review)
Rhododendron habrotrichum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron haemaleum Balf. f. & Forrest Synonym M TRO
Rhododendron haematocheilum W. G. Craib Synonym M TRO
Rhododendron haematodes Franch. Accepted M TRO
Rhododendron haematodes var. calycinum Franch. Synonym L TRO
Rhododendron haematodes subsp. chaetomallum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron haematodes subsp. haematodes Synonym L TRO
Rhododendron haematodes var. hypoleucum Franch. Synonym L TRO
Rhododendron haematophthalmum Sleumer Unresolved L WCSP (in review)
Rhododendron haemonium Balf. f. & R.E. Cooper Synonym M TRO
Rhododendron hainanense Merr. Accepted M TRO
Rhododendron × halense Grembl. Unresolved L WCSP (in review)
Rhododendron hallaisanense H.Lév. Unresolved L WCSP (in review)
Rhododendron hameliiflorum Wernham Unresolved L WCSP (in review)
Rhododendron hanceanum Hemsl. Accepted M TRO
Rhododendron hancockii Hemsl. Accepted M TRO
Rhododendron hancockii var. hancockii Synonym L TRO
Rhododendron hangzhouense W.P. Fang & M.Y. He Synonym M TRO
Rhododendron hannoense Nakai Synonym M TRO
Rhododendron hansemannii Warb. Unresolved L WCSP (in review)
Rhododendron haofui Chun & W.P. Fang Accepted M TRO
Rhododendron hardingii Forrest ex Tagg Synonym M TRO
Rhododendron hardyi Davidian Synonym M TRO
Rhododendron harrovianum Hemsl. Synonym M TRO
Rhododendron hartleyi Sleumer Unresolved L WCSP (in review)
Rhododendron × hasegawae S.Watan. Unresolved L WCSP (in review)
Rhododendron hatamense Becc. Unresolved L WCSP (in review)
Rhododendron headfortianum Hutch. Synonym M TRO
Rhododendron heatherae Rushforth Unresolved L WCSP (in review)
Rhododendron hedyosmum Balf.f. Unresolved L WCSP (in review)
Rhododendron hedythamnum Balf. f. & Forrest Synonym M TRO
Rhododendron hedythamnum var. eglandulosum Hand.-Mazz. Synonym L TRO
Rhododendron heftii Davidian Synonym M TRO
Rhododendron heishuiense W.P. Fang Synonym M TRO
Rhododendron heizhugouense M.Y. He & L.C. Hu Accepted M TRO
Rhododendron hejiangense M.Y. He Accepted M TRO
Rhododendron heliolepis Franch. Accepted M TRO
Rhododendron heliolepis var. brevistylum (Franch.) Cullen Synonym L TRO
Rhododendron heliolepis var. fumidum (Balf. f. & W.W. Sm.) R.C. Fang Accepted L TRO
Rhododendron heliolepis var. heliolepis Synonym L TRO
Rhododendron heliolepis var. oporinum (Balf. f. & Kingdon-Ward) A.L. Chang Accepted L TRO
Rhododendron hellwigii Warb. Unresolved L WCSP (in review)
Rhododendron helodes Sleumer Unresolved L WCSP (in review)
Rhododendron helvolum Balf. f. & Forrest Synonym M TRO
Rhododendron hemidartum Balf. f. ex Tagg Synonym M TRO
Rhododendron × hemigymnum (Tagg & Forrest) D.F. Chamb. Accepted M TRO
Rhododendron hemigynum (Tagg & Forrest) D.F.Chamb. Unresolved L WCSP (in review)
Rhododendron hemitrichotum Balf. f. & Forrest Accepted M TRO
Rhododendron hemsleyanum E.H. Wilson Accepted M TRO
Rhododendron hemsleyanum var. chengianum (W.P. Fang) W.P. Fang ex W.K. Hu Accepted L TRO
Rhododendron hemsleyanum var. hemsleyanum Synonym L TRO
Rhododendron henanense W.P. Fang Accepted M TRO
Rhododendron henanense subsp. henanense Synonym L TRO
Rhododendron henryi Hance Accepted M TRO
Rhododendron henryi var. dunnii (E.H. Wilson) M.Y. He Accepted L TRO
Rhododendron henryi var. henryi Synonym L TRO
Rhododendron henryi var. pubescens K.M. Feng & A.L. Chang Synonym L TRO
Rhododendron hepaticum P.C. Tam Synonym M TRO
Rhododendron heptamerum Balf. f. Synonym M TRO
Rhododendron heptaster Gilli Unresolved L WCSP (in review)
Rhododendron herpesticum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron herzogii Warb. Unresolved L WCSP (in review)
Rhododendron hesperium Balf. f. & Forrest Synonym M TRO
Rhododendron heteroclitum H.P. Yang Accepted M TRO
Rhododendron heterolepis Danet Unresolved L WCSP (in review)
Rhododendron hexamerum Hand.-Mazz. Synonym M TRO
Rhododendron hidaense Makino ex H.Hara Unresolved L WCSP (in review)
Rhododendron hidakanum H.Hara Unresolved L WCSP (in review)
Rhododendron × hillieri Davidian Accepted M TRO
Rhododendron himantodes Sleumer Unresolved L WCSP (in review)
Rhododendron himertum Balf. f. & Forrest Synonym M TRO
Rhododendron himertum subsp. nebrites (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron himertum subsp. poliopeplum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron hippophaeoides Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron hippophaeoides var. hippophaeoides Synonym L TRO
Rhododendron hirsuticostatum Hand.-Mazz. Synonym M TRO
Rhododendron × hirsutiformum Grembl. Unresolved L WCSP (in review)
Rhododendron hirsutipetiolatum A.L. Chang & R.C. Fang Accepted M TRO
Rhododendron hirsutum L. Accepted M WCSP (in review)
Rhododendron hirtipes Tagg Accepted M TRO
Rhododendron hirtolepidotum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron hispidum D.Don Unresolved L WCSP (in review)
Rhododendron hispidum Torr. Unresolved L WCSP (in review)
Rhododendron hodgsonii Hook. f. Accepted M TRO
Rhododendron hoi W.P. Fang Accepted M TRO
Rhododendron × holmleaense Rehder Unresolved L WCSP (in review)
Rhododendron honbanianum A.Chev. ex Dop Unresolved L WCSP (in review)
Rhododendron hongkongense Hutch. Accepted M TRO
Rhododendron hooglandii Sleumer Unresolved L WCSP (in review)
Rhododendron hookeri Nutt. Accepted M TRO
Rhododendron horaeum Balf. f. & Forrest Synonym M TRO
Rhododendron horlickianum Davidian Unresolved L WCSP (in review)
Rhododendron hormophorum Balf. f. & Forrest Synonym M TRO
Rhododendron hortense Nakai Unresolved L WCSP (in review)
Rhododendron houlstonii Hemsl. & E.H. Wilson Synonym M TRO
Rhododendron huadingense B.Y. Ding & Y.Y. Fang Accepted M TRO
Rhododendron huangpingense Xiang Chen & Jia Y.Huang Unresolved L WCSP (in review)
Rhododendron huanum W.P. Fang Accepted M TRO
Rhododendron huguangense P.C. Tam Accepted M TRO
Rhododendron huidongense T.L. Ming Accepted M TRO
Rhododendron huiyangense W.P. Fang & M.Y. He Synonym M TRO
Rhododendron hukwangense P.C. Tam Synonym M TRO
Rhododendron humicola Balf.f. Unresolved L WCSP (in review)
Rhododendron hunanense Chun ex P.C. Tam Accepted M TRO
Rhododendron hunanense var. mangshanicum P.C. Tam Synonym L TRO
Rhododendron hunnewellianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron hunnewellianum subsp. hunnewellianum Synonym L TRO
Rhododendron hunnewellianum subsp. rockii (E.H. Wilson) D.F. Chamb. Accepted L TRO
Rhododendron hutchinsonianum W.P. Fang Accepted M TRO
Rhododendron hyacinthiflorum Steud. Unresolved L WCSP (in review)
Rhododendron hyacinthosmum Sleumer Unresolved L WCSP (in review)
Rhododendron hybridogenum Sleumer Unresolved L WCSP (in review)
Rhododendron × hybridum Ker Gawl. Unresolved L WCSP (in review)
Rhododendron hylaeum Balf. f. & Farrer Accepted M TRO
Rhododendron hylothreptum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron hymenanthes Makino Unresolved L WCSP (in review)
Rhododendron hypenanthum Balf. f. Accepted M TRO
Rhododendron hyperythrum Hayata Accepted M TRO
Rhododendron hypoblematosum P.C. Tam Accepted M TRO
Rhododendron hypoglaucum Hemsl. Accepted M TRO
Rhododendron hypolepidotum (Franch.) Balf. f. & Forrest Synonym M TRO
Rhododendron hypoleucophyllum Makino ex H.Hara Unresolved L WCSP (in review)
Rhododendron hypoleucum (Kom.) Harmaja Accepted M TRO
Rhododendron hypophaeum Balf. f. & Forrest Synonym M TRO
Rhododendron hypopitys Pojark. Unresolved L WCSP (in review)
Rhododendron hypotrichotum Balf. f. & Forrest Synonym M TRO
Rhododendron hyugaense (T.Yamaz.) T.Yamaz. Unresolved L WCSP (in review)
Rhododendron idoneum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron igneum Cowan Accepted M TRO
Rhododendron ignicolor Warb. ex P.Sarasin & Sarasin Unresolved L WCSP (in review)
Rhododendron imberbe Hutch. Unresolved L WCSP (in review)
Rhododendron × impeanum auct. Unresolved L WCSP (in review)
Rhododendron impeditum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron imperator Hutch. & Kingdon-Ward Synonym M TRO
Rhododendron impositum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron impressopunctatum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron inaequale Hutch. Unresolved L WCSP (in review)
Rhododendron incommodum Sleumer Unresolved L WCSP (in review)
Rhododendron inconspicuum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron indicum (L.) Sweet Accepted M WCSP (in review)
Rhododendron indicum var. formosanum Hayata Synonym L TRO
Rhododendron indicum var. ignescens Sweet Synonym L TRO
Rhododendron indicum var. pulchrum (Sweet) G. Don Synonym L TRO
Rhododendron indicum var. puniceum Sweet Synonym L TRO
Rhododendron indicum var. simsii (Planch.) Maxim. Synonym L WCSP (in review)
Rhododendron indicum var. smithii Sweet Synonym L TRO
Rhododendron inobeanum Honda Unresolved L WCSP (in review)
Rhododendron inopinum Balf. f. Accepted M TRO
Rhododendron × inopinum Balf. f. Unresolved L TRO
Rhododendron insculptum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron insculptum Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron insigne Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron insigne var. hejiangense (W.P. Fang) M.Y. Fang Accepted L TRO
Rhododendron insigne var. insigne Synonym L TRO
Rhododendron intermedium Schur Unresolved L WCSP (in review)
Rhododendron intermedium Wender. Unresolved L WCSP (in review)
Rhododendron intermedium Tausch Unresolved L WCSP (in review)
Rhododendron intermedium Hegetschw. Unresolved L WCSP (in review)
Rhododendron intortum Balf. f. & Forrest Synonym M TRO
Rhododendron intranervatum Sleumer Unresolved L WCSP (in review)
Rhododendron intricatum Franch. Accepted M TRO
Rhododendron inundatum Sleumer Unresolved L WCSP (in review)
Rhododendron invasorium Sleumer Unresolved L WCSP (in review)
Rhododendron invictum Balf. f. & Farrer Accepted M TRO
Rhododendron ioanthum Balf. f. Synonym M TRO
Rhododendron iodes Balf. f. & Forrest Synonym M TRO
Rhododendron irroratum Franch. Accepted M TRO
Rhododendron irroratum subsp. irroratum Synonym L TRO
Rhododendron irroratum subsp. pogonostylum (Balf. f. & W.W. Sm.) D.F. Chamb. Accepted L TRO
Rhododendron iteophyllum Hutch. Unresolved L WCSP (in review)
Rhododendron ixeuticum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron iyoense Nakai Unresolved L WCSP (in review)
Rhododendron × jacksonii auct. Unresolved L WCSP (in review)
Rhododendron jahandiezii H. Lév. Synonym M TRO
Rhododendron jamesianum Millais Unresolved L WCSP (in review)
Rhododendron jangtzowense Balf. f. & Forrest Synonym M TRO
Rhododendron japonicum C.K.Schneid. Unresolved L WCSP (in review)
Rhododendron japonicum (A.Gray) Suringar Unresolved L WCSP (in review)
Rhododendron japonicum var. pentamerum (Maxim.) Hutch. Unresolved L TRO
Rhododendron japonoheptamerum Kitam. Unresolved L WCSP (in review)
Rhododendron jasminiflorum Hook. Unresolved L WCSP (in review)
Rhododendron jasminoides M.Y. He Accepted M TRO
Rhododendron javanicum Benn. Unresolved L WCSP (in review)
Rhododendron jenestierianum Forrest Accepted M TRO
Rhododendron jenkinsii Nutt. Synonym M TRO
Rhododendron jiewhoei Argent Unresolved L WCSP (in review)
Rhododendron jinboense Xiang Chen & X.Chen Unresolved L WCSP (in review)
Rhododendron jinchangense Zeng H. Yang Accepted M TRO
Rhododendron jingangshanicum P.C. Tam Accepted M TRO
Rhododendron jinpingense W.P. Fang & M.Y. He Accepted M TRO
Rhododendron jinxiuense W.P. Fang & M.Y. He Accepted M TRO
Rhododendron jiulongshanense Xiang Chen & Jia Y.Huang Unresolved L WCSP (in review)
Rhododendron jodogawa Hassk. Unresolved L WCSP (in review)
Rhododendron johnstoneanum Watt ex Hutch. Unresolved L WCSP (in review)
Rhododendron joniense Ching & H.P. Yang Accepted M TRO
Rhododendron jucundum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron kaempferi Planch. Unresolved L WCSP (in review)
Rhododendron kailiense W.P. Fang & M.Y. He Synonym M TRO
Rhododendron × kamatae (Mochizuki) Craven Unresolved L WCSP (in review)
Rhododendron kamtchaticum Pall. Unresolved L TRO
Rhododendron kanehirae E.H.Wilson Accepted M WCSP (in review)
Rhododendron kangdingense Z.J. Zhao Synonym M TRO
Rhododendron kansuense Millais Unresolved L WCSP (in review)
Rhododendron kasoense Hutch. & Kingdon-Ward Accepted M TRO
Rhododendron katsumatae (M.Tash. & H.Hatta) Craven Unresolved L WCSP (in review)
Rhododendron kawakamii Hayata Accepted M TRO
Rhododendron kawakamii var. flaviflorum Liu & Chuang Accepted L TRO
Rhododendron kawakamii var. kawakamii Synonym L TRO
Rhododendron kawir Danet Unresolved L WCSP (in review)
Rhododendron keditii Sleumer Unresolved L WCSP (in review)
Rhododendron keiskei Miq. Unresolved L WCSP (in review)
Rhododendron keleticum Balf. f. & Forrest Accepted M TRO
Rhododendron kemulense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron kendrickii Nutt. Accepted M TRO
Rhododendron kerowagiense Argent Unresolved L WCSP (in review)
Rhododendron kesangiae D.G.Long & Rushforth Unresolved L WCSP (in review)
Rhododendron kesselringii E.L.Wolf Unresolved L WCSP (in review)
Rhododendron × kewense S.Watson Unresolved L WCSP (in review)
Rhododendron keysii Nutt. Accepted M TRO
Rhododendron keysii var. unicolor Hutch. Synonym L TRO
Rhododendron keysseri F.Först. Unresolved L WCSP (in review)
Rhododendron kialense Franch. Synonym M TRO
Rhododendron kiangsiense W.P. Fang Accepted M TRO
Rhododendron kinabaluense Merr. Unresolved L WCSP (in review)
Rhododendron kingdonii Merr. Synonym M TRO
Rhododendron kingianum Watt Unresolved L WCSP (in review)
Rhododendron kirkii Millais Unresolved L WCSP (in review)
Rhododendron × kisoanum Okuhara ex T.Shimizu Unresolved L WCSP (in review)
Rhododendron kiusianum Makino Unresolved L WCSP (in review)
Rhododendron kiyosumense (Makino) Makino Unresolved L WCSP (in review)
Rhododendron kjellbergii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron klossii Ridl. Synonym M TRO
Rhododendron × knightianum J.Forbes Unresolved L WCSP (in review)
Rhododendron kochii Stein Unresolved L WCSP (in review)
Rhododendron kogo Danet Unresolved L WCSP (in review)
Rhododendron × komatsui T.Yamaz. Unresolved L WCSP (in review)
Rhododendron komiyamae Makino Unresolved L WCSP (in review)
Rhododendron kongboense Hutch. Accepted M TRO
Rhododendron konori Becc. Unresolved L WCSP (in review)
Rhododendron kontumense Sleumer Unresolved L WCSP (in review)
Rhododendron korthalsii Miq. Unresolved L WCSP (in review)
Rhododendron × kosterianum C.K.Schneid. Unresolved L WCSP (in review)
Rhododendron kotschyi Simonk. Synonym M WCSP (in review)
Rhododendron × koudzumontanum Hid.Takah. & Katsuy. Unresolved L WCSP (in review)
Rhododendron kroniae Craven Unresolved L WCSP (in review)
Rhododendron kuluense D.F. Chamb. Synonym M TRO
Rhododendron × kuratanum S.Watan. Unresolved L WCSP (in review)
Rhododendron × kurohimense Arakawa Unresolved L WCSP (in review)
Rhododendron kwangfuense Chun & W.P. Fang Synonym M TRO
Rhododendron kwangsiense Hu ex P.C. Tam Accepted M TRO
Rhododendron kwangsiense var. kwangsiense Synonym L TRO
Rhododendron kwangsiense var. salicinum P.C. Tam Synonym L TRO
Rhododendron kwangsiense var. subfalcatum P.C. Tam Synonym L TRO
Rhododendron kwangtungense Merr. & Chun Accepted M TRO
Rhododendron kyawii Lace & W.W. Sm. Accepted M TRO
Rhododendron labolengense Ching & H.P. Yang Accepted M TRO
Rhododendron lacteum Franch. Accepted M TRO
Rhododendron lacteum var. macrophyllum Franch. Synonym L TRO
Rhododendron × laetevirens Rehder Unresolved L WCSP (in review)
Rhododendron laetum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron lagopus Nakai Unresolved L WCSP (in review)
Rhododendron lagunculicarpum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron lambianum Argent Unresolved L WCSP (in review)
Rhododendron lamii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron lampongum Miq. Unresolved L WCSP (in review)
Rhododendron lampropeplum Balf. f. & Forrest Synonym M TRO
Rhododendron lamprophyllum Hayata Synonym L TRO
Rhododendron lamrialianum Argent & T.J.Barkman Unresolved L WCSP (in review)
Rhododendron lanatoides D.F. Chamb. Accepted M TRO
Rhododendron lanatum Hook. f. Accepted M TRO
Rhododendron lanatum var. luciferum Cowan Synonym L TRO
Rhododendron lanceolatum Ridl. Unresolved L WCSP (in review)
Rhododendron lancifolium Hook. f. Synonym M TRO
Rhododendron langbianense A.Chev. ex Dop Unresolved L WCSP (in review)
Rhododendron lanigerum Tagg Accepted M TRO
Rhododendron lanigerum var. silvaticum (Cowan) Davidian Synonym L TRO
Rhododendron laojunense T.L. Ming Synonym M TRO
Rhododendron laojunshanense M.Y. Fang Accepted M TRO
Rhododendron laoticum Dop Unresolved L WCSP (in review)
Rhododendron lapidosum T.L. Ming Synonym M TRO
Rhododendron lapponicum (L.) Wahlenb. Accepted M WCSP (in review)
Rhododendron lapponicum subsp. parvifolium (Adams) T. Yamaz. Synonym L TRO
Rhododendron lasiopodum Hutch. Synonym M TRO
Rhododendron lasiostylum Hayata Accepted M TRO
Rhododendron lateriflorum R.C. Fang & A.L. Chang Accepted M TRO
Rhododendron lateritium Planch. Synonym M TRO
Rhododendron laticostum Ingram Unresolved L WCSP (in review)
Rhododendron latifolium Hoppe Unresolved L WCSP (in review)
Rhododendron latifolium Hoffmanns. Unresolved L WCSP (in review)
Rhododendron latoucheae Franch. Accepted M TRO
Rhododendron latoucheae var. amamiense (Ohwi) T. Yamaz. Synonym L TRO
Rhododendron latoucheae var. ionanthum (W.P. Fang) G.Z. Li Synonym L TRO
Rhododendron latoucheae var. latoucheae Synonym L TRO
Rhododendron laudandum Cowan Accepted M TRO
Rhododendron laudandum var. laudandum Synonym L TRO
Rhododendron laureola Schltr. Unresolved L WCSP (in review)
Rhododendron lauterbachianum F.Först. Unresolved L WCSP (in review)
Rhododendron laxiflorum Balf. f. & Forrest Synonym M TRO
Rhododendron leachianum L.F. Hend. Synonym M TRO
Rhododendron leclerei H. Lév. Synonym M TRO
Rhododendron ledebourii Pojark. Unresolved L WCSP (in review)
Rhododendron ledifolium G. Don Synonym M TRO
Rhododendron ledoides Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron leei W.P. Fang Synonym M TRO
Rhododendron leiboense Z.J. Zhao Accepted M TRO
Rhododendron leilungense Balf. f. & Forrest Synonym M TRO
Rhododendron leiopodum Hayata Synonym M TRO
Rhododendron leishanicum W.P. Fang & S.S. Chang ex D.F. Chamb. Accepted M TRO
Rhododendron lemeei H. Lév. Synonym M TRO
Rhododendron lepidanthum Balf.f. & W.W.Sm. Unresolved L WCSP (in review)
Rhododendron lepidostylum Balf. f. & Forrest Accepted M TRO
Rhododendron lepidotum Wall. ex G. Don Accepted M TRO
Rhododendron leptanthum Hayata Synonym M TRO
Rhododendron leptobrachion Sleumer Unresolved L WCSP (in review)
Rhododendron leptocarpum Nutt. Accepted M TRO
Rhododendron leptocladon Dop Accepted M TRO
Rhododendron leptomorphum Sleumer Unresolved L WCSP (in review)
Rhododendron leptopeplum Balf. f. & Forrest Accepted M TRO
Rhododendron leptosanthum Hayata Synonym M TRO
Rhododendron leptothrium Balf. f. & Forrest Accepted M TRO
Rhododendron leucandrum H. Lév. Synonym M TRO
Rhododendron leucanthum Bunge Unresolved L WCSP (in review)
Rhododendron leucaspis Tagg Accepted M TRO
Rhododendron leucobotrys Ridl. Synonym M TRO
Rhododendron leucogigas Sleumer Unresolved L WCSP (in review)
Rhododendron leucolasium Diels Synonym M TRO
Rhododendron leucopetalum Balf. f. & Forrest Synonym M TRO
Rhododendron levinei Merr. Accepted M TRO
Rhododendron levistratum Balf. f. & Forrest Synonym M TRO
Rhododendron leytense Merr. Unresolved L WCSP (in review)
Rhododendron liangshanicum Z.J.Zhao Unresolved L WCSP (in review)
Rhododendron liaoxigense S.L. Tung & Z. Lu Accepted M TRO
Rhododendron liaoxigensis S.L.Tung & Z.Lu Unresolved L WCSP (in review)
Rhododendron liboense Z.R. Chen & K.M. Lan Accepted M TRO
Rhododendron × liewianum Argent, A.L.Lamb & Phillipps Unresolved L WCSP (in review)
Rhododendron lilacinum Xiang Chen & X.Chen Unresolved L WCSP (in review)
Rhododendron liliiflorum H. Lév. Accepted M TRO
Rhododendron limprichtii Diels Synonym M TRO
Rhododendron lindaueanum Koord. Unresolved L WCSP (in review)
Rhododendron lindleyanum Millais Unresolved L WCSP (in review)
Rhododendron lindleyanum Lavallée Unresolved L WCSP (in review)
Rhododendron lindleyi T. Moore Accepted M TRO
Rhododendron lineare Merr. Unresolved L WCSP (in review)
Rhododendron linearicupulare P.C. Tam Synonym M TRO
Rhododendron linearifolium Poir. Unresolved L WCSP (in review)
Rhododendron linearifolium Siebold & Zucc. Unresolved L WCSP (in review)
Rhododendron linearilobum R.C. Fang & A.L. Chang Accepted M TRO
Rhododendron linguiense G.Z. Li Accepted M TRO
Rhododendron linnaeoides Schltr. Unresolved L WCSP (in review)
Rhododendron liratum Balf. f. & Forrest Synonym M TRO
Rhododendron litangense Balf. f. ex Hutch. Synonym M TRO
Rhododendron litchiifolium T.C. Wu & P.C. Tam Accepted M TRO
Rhododendron lithophilum Balf.f. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron litiense Balf. f. & Forrest Synonym M TRO
Rhododendron lobbii auct. Unresolved L WCSP (in review)
Rhododendron loboense H.F.Copel. Unresolved L WCSP (in review)
Rhododendron lochae F.Muell. Unresolved L WCSP (in review)
Rhododendron lochmium Balf. f. Accepted M TRO
Rhododendron loerzingii J.J.Sm. ex Koord. & Valeton Unresolved L WCSP (in review)
Rhododendron loheri H.F.Copel. Unresolved L WCSP (in review)
Rhododendron lompohense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron longesquamatum C.K. Schneid. Accepted M TRO
Rhododendron longesquamatum var. glabristylum Y.Y. Geng & Z.L. Zhao Synonym L TRO
Rhododendron longicalyx M.Y. Fang Accepted M TRO
Rhododendron longifalcatum P.C. Tam Accepted M TRO
Rhododendron longiflorum Lindl. Unresolved L WCSP (in review)
Rhododendron longifolium Nutt. Synonym M TRO
Rhododendron longilobum L.M. Gao & D.Z. Li Accepted M TRO
Rhododendron longiperulatum Hayata Accepted M TRO
Rhododendron longipes Rehder & E.H. Wilson Accepted M TRO
Rhododendron longipes var. chienianum (W.P. Fang) D.F. Chamb. Accepted L TRO
Rhododendron longipes var. longipes Synonym L TRO
Rhododendron longistylum Rehder & A. Wilson Accepted M TRO
Rhododendron longistylum subsp. longistylum Synonym L TRO
Rhododendron loniceriflorum P.C. Tam Accepted M TRO
Rhododendron lophogynum Balf. f. & Forrest ex Hutch. Synonym M TRO
Rhododendron lophophorum Balf. f. & Forrest Synonym M TRO
Rhododendron lopsangianum Cowan Synonym M TRO
Rhododendron loranthiflorum Sleumer Unresolved L WCSP (in review)
Rhododendron loureiriana G. Don Unresolved L TRO
Rhododendron lowei Loudon Unresolved L WCSP (in review)
Rhododendron lowei Hook.f. Unresolved L WCSP (in review)
Rhododendron lowndesii Davidian Unresolved L WCSP (in review)
Rhododendron lucidum Nutt. Unresolved L WCSP (in review)
Rhododendron lucidum Franch. Unresolved L WCSP (in review)
Rhododendron luciferum (Cowan) Cowan Synonym M TRO
Rhododendron ludlowii Cowan Accepted M TRO
Rhododendron ludwigianum Hosseus Unresolved L WCSP (in review)
Rhododendron luhuoense H.P. Yang Accepted M TRO
Rhododendron lukiangense Franch. Accepted M TRO
Rhododendron lukiangense subsp. admirabile (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron lukiangense subsp. adroserum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron lukiangense subsp. ceraceum (Balf. f. & W.W. Sm.) Tagg Synonym L TRO
Rhododendron lukiangense subsp. gymnanthum (Diels) Tagg Synonym L TRO
Rhododendron lulangense L.C. Hu & Tateishi Accepted M TRO
Rhododendron lungchiense W.P. Fang Accepted M TRO
Rhododendron luraluense Sleumer Unresolved L WCSP (in review)
Rhododendron × luscombei W.Watson Unresolved L WCSP (in review)
Rhododendron lusidusculum Nakai Unresolved L WCSP (in review)
Rhododendron lussoniense Rendle Unresolved L WCSP (in review)
Rhododendron luteiflorum Davidian Unresolved L WCSP (in review)
Rhododendron luteiflorum (Davidian) Cullen Unresolved L WCSP (in review)
Rhododendron luteosquamatum Sleumer Unresolved L WCSP (in review)
Rhododendron lutescens Franch. Accepted M TRO
Rhododendron lutescens f. shimianense (W.P. Fang & P.S. Liu) Y.Y. Geng Synonym L TRO
Rhododendron luteum Sweet Accepted M WCSP (in review)
Rhododendron lyi H. Lév. Synonym M TRO
Rhododendron lysolepis Hutch. Unresolved L WCSP (in review)
Rhododendron maboroense Schltr. Unresolved L WCSP (in review)
Rhododendron macabeanum Watt ex Balf.f. Unresolved L WCSP (in review)
Rhododendron macgregoriae F.Muell. Unresolved L WCSP (in review)
Rhododendron mackenzianum Forrest Accepted M TRO
Rhododendron macranthum (Bunge) G. Don Synonym M TRO
Rhododendron macrocarpos Griff. Unresolved L WCSP (in review)
Rhododendron macrocarpum Van Houtte Unresolved L WCSP (in review)
Rhododendron macrogemmum (Nakai) Nakai Unresolved L WCSP (in review)
Rhododendron macrophyllum D. Don ex G. Don Accepted M TRO
Rhododendron macrophyllum f. album Rehder Synonym L TRO
Rhododendron macrosepalum Maxim. Unresolved L WCSP (in review)
Rhododendron macrosiphon Sleumer Unresolved L WCSP (in review)
Rhododendron macrosmithii Davidian Synonym M TRO
Rhododendron macrostemon Maxim. Unresolved L WCSP (in review)
Rhododendron maculiferum Franch. Accepted M TRO
Rhododendron maculiferum subsp. anhweiense (E.H. Wilson) D.F. Chamb. Accepted L TRO
Rhododendron maculiferum subsp. maculiferum Synonym L TRO
Rhododendron maddenii Hook. f. Accepted M TRO
Rhododendron maddenii subsp. crassum (Franch.) Cullen Accepted L TRO
Rhododendron maddenii var. longiflorum W. Watson Synonym L TRO
Rhododendron maddenii subsp. maddenii Synonym L TRO
Rhododendron madulidii Argent Unresolved L WCSP (in review)
Rhododendron magnificum Kingdon-Ward Accepted M TRO
Rhododendron magniflorum W.K. Hu Accepted M TRO
Rhododendron magorianum Millais Unresolved L WCSP (in review)
Rhododendron magorianum Balf.f. ex Tagg Unresolved L WCSP (in review)
Rhododendron maguanense K.M. Feng Accepted M TRO
Rhododendron mainlingense S.H. Huang & R.C. Fang Accepted M TRO
Rhododendron mairei H. Lév. Synonym M TRO
Rhododendron maius (J.J.Sm.) Sleumer Unresolved L WCSP (in review)
Rhododendron makinoi Tagg Unresolved L WCSP (in review)
Rhododendron makinoi Tagg ex Nakai Unresolved L WCSP (in review)
Rhododendron malayanum Jack Unresolved L WCSP (in review)
Rhododendron malindangense Merr. Unresolved L WCSP (in review)
Rhododendron malipoense M.Y. He Accepted M TRO
Rhododendron mallotum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron × malvaticum auct. Unresolved L WCSP (in review)
Rhododendron mandarinorum Diels Synonym M TRO
Rhododendron × manglesii H.J.Veitch Unresolved L WCSP (in review)
Rhododendron manipurense Balf.f. & Watt Unresolved L WCSP (in review)
Rhododendron mannophorum Balf. f. & Forrest Synonym M TRO
Rhododendron manopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron maoerense W.P. Fang & G.Z. Li Accepted M TRO
Rhododendron maowenense Ching & H.P. Yang Accepted M TRO
Rhododendron margarettae Ashe Unresolved L WCSP (in review)
Rhododendron mariae Hance Accepted M TRO
Rhododendron mariae subsp. kwangsiense (Hu ex P.C. Tam) Chamb. & Rae Synonym L TRO
Rhododendron mariae subsp. mariae Synonym L TRO
Rhododendron mariesii Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron martinianum Balf. f. & Forrest Accepted M TRO
Rhododendron maximowiczianum H. Lév. Synonym M TRO
Rhododendron maximum L. Accepted M TRO
Rhododendron maximum f. album (Pursh) Fernald Accepted L TRO
Rhododendron maximum var. album Pursh Synonym L TRO
Rhododendron maximum f. maximum Synonym L TRO
Rhododendron maximum f. purpureum (Pursh) Fernald Accepted L TRO
Rhododendron maximum var. purpureum Pursh Synonym L TRO
Rhododendron maxiongense C.Q.Zhang & D.Paterson Unresolved L WCSP (in review)
Rhododendron maxwellii Gibbs Unresolved L WCSP (in review)
Rhododendron mayebarae Nakai & H.Hara Unresolved L WCSP (in review)
Rhododendron mayrii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron meddianum Forrest Accepted M TRO
Rhododendron meddianum var. meddianum Synonym L TRO
Rhododendron medoense W.P. Fang & M.Y. He Accepted M TRO
Rhododendron medoense var. medoense Synonym L TRO
Rhododendron megacalyx Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron megalanthum M.Y. Fang Accepted M TRO
Rhododendron megaphyllum Balf. f. & Forrest Synonym M TRO
Rhododendron megeratum Balf. f. & Forrest Accepted M TRO
Rhododendron meijeri Argent, A.L.Lamb & Phillipps Unresolved L WCSP (in review)
Rhododendron mekongense Franch. Accepted M TRO
Rhododendron mekongense var. longipilosum (Cowan) Cullen Accepted L TRO
Rhododendron mekongense var. mekongense Synonym L TRO
Rhododendron mekongense var. melinanthum (Balf. f. & Kingdon-Ward) Cullen Accepted L TRO
Rhododendron mekongense var. rubrolineatum (Balf. f. & Forrest) Cullen Accepted L TRO
Rhododendron melantherum Schltr. Unresolved L WCSP (in review)
Rhododendron melinanthum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron meliphagidum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron mendumiae Argent Unresolved L WCSP (in review)
Rhododendron mengtszense Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron menziesii Craven Unresolved L WCSP (in review)
Rhododendron meridionale P.C. Tam Accepted M TRO
Rhododendron meridionale var. meridionale Synonym L TRO
Rhododendron mesopolium Balf. f. & Forrest Synonym M TRO
Rhododendron metrium Balf. f. & Forrest Synonym M TRO
Rhododendron metternichii Siebold & Zucc. Unresolved L WCSP (in review)
Rhododendron mianningense Z.J. Zhao Accepted M TRO
Rhododendron micranthum Turcz. Accepted M TRO
Rhododendron microgynum Balf. f. & Forrest Accepted M TRO
Rhododendron microleucum Hutch. Synonym M TRO
Rhododendron micromalayanum Sleumer Unresolved L WCSP (in review)
Rhododendron micromeres Tagg Synonym M TRO
Rhododendron microphyllum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron microphyton Franch. Accepted M TRO
Rhododendron microphyton var. microphyton Synonym L TRO
Rhododendron milleri Argent Unresolved L WCSP (in review)
Rhododendron mimetes Tagg & Forrest Accepted M TRO
Rhododendron mimetes var. simulans Tagg & Forrest Synonym L TRO
Rhododendron mindanaense Merr. Unresolved L WCSP (in review)
Rhododendron miniatum Cowan Accepted M TRO
Rhododendron minimifolium Wernham Unresolved L WCSP (in review)
Rhododendron minus Michx. Accepted M TRO
Rhododendron minus var. chapmanii (Alph. Wood) Gandhi & Zarucchi Accepted L TRO
Rhododendron minutiflorum Hu Accepted M TRO
Rhododendron minyaense Philipson & M.N. Philipson Accepted M TRO
Rhododendron mirabile Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron mishmiense Hutch. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron missionarium H. Lév. Synonym M TRO
Rhododendron mitriforme P.C. Tam Accepted M TRO
Rhododendron mitriforme var. mitriforme Synonym L TRO
Rhododendron miyazawae Nakai & H.Hara Unresolved L WCSP (in review)
Rhododendron miyiense W.K. Hu Accepted M TRO
Rhododendron × mizumotoi S.Watan. Unresolved L WCSP (in review)
Rhododendron mjoehergii Merr. Unresolved L WCSP (in review)
Rhododendron modestum Hook.f. Unresolved L WCSP (in review)
Rhododendron mogeanum Argent Unresolved L WCSP (in review)
Rhododendron molle G.Don Accepted M WCSP (in review)
Rhododendron molle subsp. japonicum (A.Gray) Kron Unresolved L WCSP (in review)
Rhododendron molle subsp. molle Synonym L TRO
Rhododendron mollianum Koord. Unresolved L WCSP (in review)
Rhododendron mollicomum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron mollicomum var. rockii Tagg Synonym L TRO
Rhododendron mollyanum Cowan & Davidian Unresolved L WCSP (in review)
Rhododendron monanthum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron monbeigii Rehder & E.H. Wilson Synonym M TRO
Rhododendron monkoboense Argent Unresolved L WCSP (in review)
Rhododendron monodii (H.J.Lam) Argent Unresolved L WCSP (in review)
Rhododendron monosematum Hutch. Synonym M TRO
Rhododendron montiganum T.L. Ming Accepted M TRO
Rhododendron montroseanum Davidian Accepted M TRO
Rhododendron morelianum Lem. Unresolved L WCSP (in review)
Rhododendron morii Hayata Accepted M TRO
Rhododendron morii var. taitunense (T. Yamaz.) D.F. Chamb. Synonym L TRO
Rhododendron morsheadianum Millais Unresolved L WCSP (in review)
Rhododendron × morteri Sweet Unresolved L WCSP (in review)
Rhododendron moszkowskii Schltr. Unresolved L WCSP (in review)
Rhododendron motsouense H. Lév. Synonym M TRO
Rhododendron moulmainense Hook. Accepted M TRO
Rhododendron moulmainense var. calcaratum G.Z. Li Synonym L TRO
Rhododendron moultonii Ridl. Unresolved L WCSP (in review)
Rhododendron moupinense Franch. Accepted M TRO
Rhododendron mucronatum (Blume) G. Don Accepted M TRO
Rhododendron mucronulatum Turcz. Accepted M TRO
Rhododendron mucronulatum var. ciliatum Nakai Synonym L TRO
Rhododendron mucronulatum subsp. sichotense (Pojark.) A.P. Khokhr. Accepted L TRO
Rhododendron muliense Balf. f. & Forrest Synonym M TRO
Rhododendron multicolor Miq. Unresolved L WCSP (in review)
Rhododendron multiflorum (Maxim.) Craven Unresolved L WCSP (in review)
Rhododendron multinervium Sleumer Unresolved L WCSP (in review)
Rhododendron murudense Merr. Unresolved L WCSP (in review)
Rhododendron muscicola J.J.Sm. Unresolved L WCSP (in review)
Rhododendron mutabile Webb ex Royle Unresolved L WCSP (in review)
Rhododendron myiagrum Balf. f. & Forrest Synonym M TRO
Rhododendron myrsinifolium Ching ex W.P. Fang & M.Y. He Accepted M TRO
Rhododendron myrsinites Sleumer Unresolved L WCSP (in review)
Rhododendron myrtifolium Lodd. [Invalid] Synonym M WCSP (in review)
Rhododendron myrtifolium Schott & Kotschy Accepted M WCSP (in review)
Rhododendron myrtilloides Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron naamkwanense Merr. Accepted M TRO
Rhododendron naamkwanense var. naamkwanense Synonym L TRO
Rhododendron nagasakianum Nakai Unresolved L WCSP (in review)
Rhododendron nakaharae Hayata Accepted M TRO
Rhododendron nakaii Komatsu Unresolved L WCSP (in review)
Rhododendron nakotiltum Balf. f. & Forrest Accepted M TRO
Rhododendron nanjianense K.M. Feng & Z.H. Yang Accepted M TRO
Rhododendron nankotaisanense Hayata Synonym M TRO
Rhododendron nanophyton Sleumer Unresolved L WCSP (in review)
Rhododendron nanothamnum Balf. f. & Forrest Synonym M TRO
Rhododendron nanpingense P.C. Tam Accepted M TRO
Rhododendron nanum H. Lév. Synonym M TRO
Rhododendron narcissiflorum Planch. Unresolved L WCSP (in review)
Rhododendron natalicium Sleumer Unresolved L WCSP (in review)
Rhododendron nayarii G.D.Pal Unresolved L WCSP (in review)
Rhododendron nebrites Balf. f. & Forrest Synonym M TRO
Rhododendron × nebulicola Danet Unresolved L WCSP (in review)
Rhododendron neglectum (Ashe) Ashe Accepted L TRO
Rhododendron nematocalyx Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron nemorosum R.C. Fang Synonym M TRO
Rhododendron neobritannicum Sleumer Unresolved L WCSP (in review)
Rhododendron neoglandulosum Harmaja Synonym M TRO
Rhododendron nepalense Voss Unresolved L WCSP (in review)
Rhododendron neriiflorum Franch. Accepted M TRO
Rhododendron neriiflorum subsp. agetum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron neriiflorum var. agetum (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron neriiflorum var. appropinquans (Tagg & Forrest) W.K. Hu Accepted L TRO
Rhododendron neriiflorum subsp. euchaites (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron neriiflorum var. euchaites (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron neriiflorum var. neriiflorum Synonym L TRO
Rhododendron neriiflorum subsp. neriiflorum Synonym L TRO
Rhododendron neriiflorum subsp. phaedropum (Balf. f. & Farrer) Tagg Synonym L TRO
Rhododendron neriiflorum var. phaedropum (Balf. f. & Farrer) T.L. Ming Synonym L TRO
Rhododendron neriiflorum subsp. phoenicodum (Balf. f. & Farrer) Tagg Synonym L TRO
Rhododendron neriifolium Schltr. Unresolved L WCSP (in review)
Rhododendron nervosulum Sleumer Unresolved L WCSP (in review)
Rhododendron netternichii var. pentamerum Maxim. Synonym L TRO
Rhododendron ngawchangensis M.N.Philipson & Philipson Unresolved L WCSP (in review)
Rhododendron nhatrangense Dop Unresolved L WCSP (in review)
Rhododendron nieuwenhuisii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron nigroglandulosum Nitz. Accepted M TRO
Rhododendron nigropunctatum Bureau & Franch. Synonym M TRO
Rhododendron niko-montanum (Komatsu) Nakai Unresolved L WCSP (in review)
Rhododendron nikoense Nakai Unresolved L WCSP (in review)
Rhododendron nilagiricum Zenker Unresolved L WCSP (in review)
Rhododendron ningyuenense Hand.-Mazz. Synonym M TRO
Rhododendron niphargum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron niphobolum Balf. f. & Farrer Synonym M TRO
Rhododendron nipponicum Matsum. Unresolved L WCSP (in review)
Rhododendron nishiokae H.Hara Unresolved L WCSP (in review)
Rhododendron nitens Hutch. Unresolved L WCSP (in review)
Rhododendron nitens Sleumer Unresolved L WCSP (in review)
Rhododendron nitidulum Rehder & E.H. Wilson Accepted M TRO
Rhododendron nitidulum var. nitidulum Synonym L TRO
Rhododendron nitidulum var. nubigenum Rehder & E.H. Wilson Synonym L TRO
Rhododendron nitidum (Pursh) Torr. Synonym L TRO
Rhododendron nivale Hook. f. Accepted M TRO
Rhododendron nivale subsp. boreale Philipson & M.N. Philipson Accepted L TRO
Rhododendron nivale subsp. nivale Synonym L TRO
Rhododendron niveoflorum Argent Unresolved L WCSP (in review)
Rhododendron niveum Hook. f. Accepted M TRO
Rhododendron nobile Wall. Unresolved L WCSP (in review)
Rhododendron nobleanum Lindl. Unresolved L WCSP (in review)
Rhododendron nodosum C.H.Wright Unresolved L WCSP (in review)
Rhododendron nomophilum Balf.f. ex Tagg Unresolved L WCSP (in review)
Rhododendron × norbitonense W.Sm. ex André Unresolved L WCSP (in review)
Rhododendron noriakianum Suzuki Accepted M TRO
Rhododendron nortoniae Merr. Unresolved L WCSP (in review)
Rhododendron notatum Hutch. Synonym M TRO
Rhododendron notiale Craven Unresolved L WCSP (in review)
Rhododendron nubicola Wernham Unresolved L WCSP (in review)
Rhododendron nudiflorum Torr. Accepted M TRO
Rhododendron nudiflorum f. nudiflorum Synonym L TRO
Rhododendron nudipes Nakai Unresolved L WCSP (in review)
Rhododendron nudipes var. tsurugisanense T.Yamaz. Unresolved L WCSP (in review)
Rhododendron nudipes subsp. yakumontanum T.Yamaz. Unresolved L WCSP (in review)
Rhododendron nummatum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron nuttallii Booth ex Nutt. Accepted M TRO
Rhododendron nwaiense Balf.f. & W.W.Sm. Unresolved L WCSP (in review)
Rhododendron nyingchiense R.C. Fang & S.H. Huang Accepted M TRO
Rhododendron nymphaeoides W.K. Hu Accepted M TRO
Rhododendron o-murasaki Makino Unresolved L WCSP (in review)
Rhododendron oblancifolium M.Y. Fang Accepted M TRO
Rhododendron oblongifolium (Small) Millais Accepted L TRO
Rhododendron oblongum Griff. Synonym M TRO
Rhododendron obovatum Hook.f. Unresolved L WCSP (in review)
Rhododendron obscurinervium Merr. Unresolved L WCSP (in review)
Rhododendron obscurum Franch. ex Balf. f. Synonym M TRO
Rhododendron obtusum Hort. ex Wats. Accepted M TRO
Rhododendron obtusum (Lindl.) Planch. Synonym M TRO
Rhododendron occidentale (Torr. & A. Gray) A. Gray Accepted L TRO
Rhododendron ochraceum Rehder & E.H. Wilson Accepted M TRO
Rhododendron ochraceum var. ochraceum Synonym L TRO
Rhododendron ochrocalyx Delavay ex Millais Unresolved L WCSP (in review)
Rhododendron octandrum M.Y. He Accepted M TRO
Rhododendron odoratum Lodd. ex Steud. Unresolved L WCSP (in review)
Rhododendron odoratum Sarg. Unresolved L WCSP (in review)
Rhododendron odoriferum Hutch. Synonym M TRO
Rhododendron officinale Salisb. Synonym M TRO
Rhododendron oldhamii Maxim. Accepted M TRO
Rhododendron oldhamii var. glandulosum Hayata Synonym L TRO
Rhododendron oleifolium Franch. Synonym M TRO
Rhododendron oliganthum Sleumer Unresolved L WCSP (in review)
Rhododendron oligocarpum W.P. Fang Accepted M TRO
Rhododendron ombrochares Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron openshawianum Rehder & E.H. Wilson Synonym M TRO
Rhododendron oporinum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron opulentum Sleumer Unresolved L WCSP (in review)
Rhododendron oranum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron orbiculare Decne. Accepted M TRO
Rhododendron orbiculare subsp. cardiobasis (Sleumer) D.F. Chamb. Accepted L TRO
Rhododendron orbiculare subsp. orbiculare Synonym L TRO
Rhododendron orbiculatum Ridl. Unresolved L WCSP (in review)
Rhododendron oreadum Wernham Unresolved L WCSP (in review)
Rhododendron oreinum Balf. f. Synonym M TRO
Rhododendron oreites Sleumer Unresolved L WCSP (in review)
Rhododendron oreodoxa Franch. Accepted M TRO
Rhododendron oreodoxa var. fargesii (Franch.) D.F. Chamb. Accepted L TRO
Rhododendron oreodoxa var. oreodoxa Synonym L TRO
Rhododendron oreogenum L.C. Hu Accepted M TRO
Rhododendron oreotrephes W.W. Sm. Accepted M TRO
Rhododendron oresbium Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron oresterum Balf. f. & Forrest Synonym M TRO
Rhododendron orientale Wehmer Unresolved L WCSP (in review)
Rhododendron orion Ridl. Unresolved L WCSP (in review)
Rhododendron × ornatissimum Verschaff. Unresolved L WCSP (in review)
Rhododendron ornatum Sweet Unresolved L WCSP (in review)
Rhododendron orthocladum Balf. f. & Forrest Accepted M TRO
Rhododendron orthocladum var. microleucum (Hutch.) Philipson & M.N. Philipson Synonym L TRO
Rhododendron orthocladum var. orthocladum Synonym L TRO
Rhododendron osakazuki Komatsu Unresolved L WCSP (in review)
Rhododendron osmerum Balf.f. & Forrest Unresolved L WCSP (in review)
Rhododendron osuzuyamense T.Yamaz. Unresolved L WCSP (in review)
Rhododendron oulotrichum Balf. f. & Forrest Synonym M TRO
Rhododendron ovatosepalum Yamam. Synonym M TRO
Rhododendron ovatum (Lindl.) Planch. ex Maxim. Accepted L TRO
Rhododendron ovatum var. lamprophyllum (Hayata) Y.C. Liu Synonym L TRO
Rhododendron ovatum var. ovatum Synonym L TRO
Rhododendron ovatum var. prismatum P.C. Tam Synonym L TRO
Rhododendron ovatum var. setuliferum M.Y. He Synonym L TRO
Rhododendron oxycoccoides Sleumer Unresolved L WCSP (in review)
Rhododendron oxyphyllum Franch. Synonym M TRO
Rhododendron pachycarpon Sleumer Unresolved L WCSP (in review)
Rhododendron pachyphyllum W.P. Fang Accepted M TRO
Rhododendron pachypodum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron pachysanthum Hayata Accepted M TRO
Rhododendron pachystigma Sleumer Unresolved L WCSP (in review)
Rhododendron pachytrichum Franch. Accepted M TRO
Rhododendron pachytrichum var. monosematum (Hutch.) D.F. Chamb. Synonym L TRO
Rhododendron pachytrichum var. pachytrichum Synonym L TRO
Rhododendron pagophilum Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron pallescens Hutch. Unresolved L WCSP (in review)
Rhododendron pallidum Dummer Unresolved L WCSP (in review)
Rhododendron paludosum Hutch. & Kingdon-Ward Synonym M TRO
Rhododendron palustre Turcz. Synonym M TRO
Rhododendron palustre (L.) Kron & Judd Synonym L TRO
Rhododendron pankimense Cowan & Kingdon-Ward Synonym M TRO
Rhododendron panteumorphum Balf. f. & W.W. Sm. Synonym L TRO
Rhododendron papillatum Balf. f. & R.E. Cooper Accepted M TRO
Rhododendron papuanum Becc. Unresolved L WCSP (in review)
Rhododendron papyrociliare P.C. Tam Synonym M TRO
Rhododendron paradoxum Balf. f. Accepted M TRO
Rhododendron × paradoxum Balf. f. Unresolved L TRO
Rhododendron parishii C.B.Clarke Unresolved L WCSP (in review)
Rhododendron parmulatum Cowan Accepted M TRO
Rhododendron parryae Hutch. Unresolved L WCSP (in review)
Rhododendron partitum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron parviflorum Dum.Cours. Unresolved L WCSP (in review)
Rhododendron parviflorum DC. Unresolved L WCSP (in review)
Rhododendron parvifolium Adams Synonym M TRO
Rhododendron parvifolium subsp. confertissimum (Nakai) A.P. Khokhr. Synonym L TRO
Rhododendron parvulum Sleumer Unresolved L WCSP (in review)
Rhododendron patuergensis S.S.Ying Unresolved L WCSP (in review)
Rhododendron patulum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron pauciflorum King & Gamble Unresolved L WCSP (in review)
Rhododendron pectinatum Hutch. Synonym M TRO
Rhododendron × pelargoniiflorum Van Houtte Unresolved L WCSP (in review)
Rhododendron pemakoense Kingdon-Ward Accepted M TRO
Rhododendron pendulum Hook. f. Accepted M TRO
Rhododendron pennivenium Balf. f. & Forrest Synonym M TRO
Rhododendron × pennsylvanicum (B.E.Harkn.) Rehder Unresolved L WCSP (in review)
Rhododendron pennsylvanicum Rehder Accepted M TRO
Rhododendron pentamerum (Maxim.) Matsum. & Nakai Unresolved L WCSP (in review)
Rhododendron pentandrum (Maxim.) Craven Unresolved L WCSP (in review)
Rhododendron pentaphyllum Maxim. Unresolved L WCSP (in review)
Rhododendron perakense King & Gamble Unresolved L WCSP (in review)
Rhododendron peramabile Hutch. Synonym M TRO
Rhododendron peramoenum Balf. f. & Forrest Synonym M TRO
Rhododendron peregrinum Tagg Accepted M TRO
Rhododendron periclymenoides (Michx.) Shinners Accepted L TRO
Rhododendron periclymenoides f. album (Aiton) C.F. Reed Accepted L TRO
Rhododendron perplexum Sleumer Unresolved L WCSP (in review)
Rhododendron persicinum Hand.-Mazz. Synonym M TRO
Rhododendron perulatum Balf. f. & Forrest Synonym M TRO
Rhododendron petelotii Dop Unresolved L WCSP (in review)
Rhododendron petilum P.C. Tam Synonym M TRO
Rhododendron petrocharis Diels Accepted M TRO
Rhododendron phaedropum Balf. f. & Farrer Synonym M TRO
Rhododendron phaeochiton F.Muell. Unresolved L WCSP (in review)
Rhododendron phaeochitum F. Muell. Unresolved L TRO
Rhododendron phaeochlorum Balf. f. & Forrest Synonym M TRO
Rhododendron phaeochristum Sleumer Unresolved L WCSP (in review)
Rhododendron phaeochrysum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron phaeochrysum var. agglutinatum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron phaeochrysum var. levistratum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron phaeochrysum var. phaeochrysum Synonym L TRO
Rhododendron phaeopeplum Sleumer Unresolved L WCSP (in review)
Rhododendron phaeops Sleumer Unresolved L WCSP (in review)
Rhododendron phoeniceum G.Don Unresolved L WCSP (in review)
Rhododendron phoeniceum f. smithii (Sweet) E.H. Wilson Synonym L TRO
Rhododendron phoenicodum Balf. f. & Farrer Synonym M TRO
Rhododendron pholidotum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron piceum P.C. Tam Synonym M TRO
Rhododendron × pictum J.Forbes Unresolved L WCSP (in review)
Rhododendron piercei Davidian Accepted M TRO
Rhododendron pilicalyx Hutch. Synonym M TRO
Rhododendron pilostylum W.K. Hu Accepted M TRO
Rhododendron pilosum (Michx.) Craven Unresolved L WCSP (in review)
Rhododendron pilovittatum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron pinetorum P.C. Tam Accepted M TRO
Rhododendron pingbianense M.Y. Fang Accepted M TRO
Rhododendron pingianum W.P. Fang Accepted M TRO
Rhododendron pittosporifolium Hemsl. Synonym M TRO
Rhododendron planecostatum Sleumer Unresolved L WCSP (in review)
Rhododendron planetum Balf.f. Unresolved L WCSP (in review)
Rhododendron planifolium Nutt. Unresolved L WCSP (in review)
Rhododendron platyphyllum (Franch. ex Diels) Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron platypodum Diels Accepted M TRO
Rhododendron plebeium Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron pleianthum Sleumer Unresolved L WCSP (in review)
Rhododendron pleistanthum Balf. f. ex Hutch. Synonym M TRO
Rhododendron pleistanthum E.H. Wilding Accepted M TRO
Rhododendron pneumonanthum Sleumer Unresolved L WCSP (in review)
Rhododendron pocophorum Balf. f. ex Tagg Accepted M TRO
Rhododendron pocophorum var. hemidartum (Balf. f. ex Tagg) D.F. Chamb. Accepted L TRO
Rhododendron pocophorum var. pocophorum Synonym L TRO
Rhododendron podocarpoides Schltr. Unresolved L WCSP (in review)
Rhododendron poecilodermum Balf. f. & Forrest Synonym M TRO
Rhododendron pogonophyllum Cowan & Davidian Unresolved L WCSP (in review)
Rhododendron pogonostylum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron poilanei Dop Accepted M TRO
Rhododendron polifolium (L.) Scop. Synonym M WCSP (in review)
Rhododendron polifolium Franch. Synonym M TRO
Rhododendron poliopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron poluninii Davidian Unresolved L WCSP (in review)
Rhododendron polyandrum Hutch. Synonym M TRO
Rhododendron polyanthemum Sleumer Unresolved L WCSP (in review)
Rhododendron polycladum Franch. Accepted M TRO
Rhododendron polylepis Franch. Accepted M TRO
Rhododendron polyraphidoideum P.C. Tam Accepted M TRO
Rhododendron polyraphidoideum var. polyraphidoideum Synonym L TRO
Rhododendron polytrichum W.P. Fang Accepted M TRO
Rhododendron pomense Cowan & Davidian Accepted M TRO
Rhododendron ponticum L. Accepted M WCSP (in review)
Rhododendron ponticum subsp. baeticum (Boiss. & Reut.) Hand.-Mazz. Accepted L WCSP (in review)
Rhododendron populare Cowan Accepted M TRO
Rhododendron poremense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron porphyranthes Sleumer Unresolved L WCSP (in review)
Rhododendron porphyroblastum Balf. f. & Forrest Synonym M TRO
Rhododendron porphyrophyllum Balf. f. & Forrest Synonym M TRO
Rhododendron porrosquameum Balf. f. & Forrest Synonym M TRO
Rhododendron potaninii Batalin Accepted M TRO
Rhododendron pothinum Balf. f. & Forrest Synonym M TRO
Rhododendron poukhanense H.Lév. Unresolved L WCSP (in review)
Rhododendron praeclarum Balf.f. & Farrer Unresolved L WCSP (in review)
Rhododendron × praecox I.Davis Unresolved L WCSP (in review)
Rhododendron praestans Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron praeteritum Hutch. Accepted M TRO
Rhododendron praeteritum var. praeteritum Synonym L TRO
Rhododendron praetervisum Sleumer Unresolved L WCSP (in review)
Rhododendron praevernum Hutch. Accepted M TRO
Rhododendron prainianum Koord. Unresolved L WCSP (in review)
Rhododendron prasinocalyx Balf. f. & Forrest Synonym M TRO
Rhododendron prattii Franch. Synonym M TRO
Rhododendron preptum Balf. f. & Forrest Accepted M TRO
Rhododendron primuliflorum Bureau & Franch. Accepted M TRO
Rhododendron primuliflorum var. cephalanthoides (Balf. f. & W.W. Sm.) Cowan & Davidian Accepted L TRO
Rhododendron primuliflorum var. primuliflorum Synonym L TRO
Rhododendron primulinum Hemsl. Synonym M TRO
Rhododendron principis Bureau & Franch. Accepted M TRO
Rhododendron principis var. vellereum (Hutch. ex Tagg) T.L. Ming Synonym L TRO
Rhododendron prinophyllum (Small) Millais Accepted L TRO
Rhododendron pritzelianum Diels Synonym M TRO
Rhododendron probum Balf. f. & Forrest Synonym M TRO
Rhododendron procerum Salisb. Unresolved L WCSP (in review)
Rhododendron procumbens E.H.L.Krause Unresolved L WCSP (in review)
Rhododendron proliferum Sleumer Unresolved L WCSP (in review)
Rhododendron pronum Tagg & Forrest Accepted M TRO
Rhododendron prophantum Balf. f. & Forrest Synonym M TRO
Rhododendron propinquum Balf.f. & Kingdon-Ward ex Tagg Unresolved L WCSP (in review)
Rhododendron prostratum W.W. Sm. Synonym M TRO
Rhododendron protandrum Sleumer Unresolved L WCSP (in review)
Rhododendron proteoides Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron protistum Balf. f. & Forrest Accepted M TRO
Rhododendron protistum var. giganteum (Forrest ex Tagg) D.F. Chamb. Accepted L TRO
Rhododendron protistum var. protistum Synonym L TRO
Rhododendron × pruhonicianum Kavka Unresolved L WCSP (in review)
Rhododendron pruniflorum Hutch. & Kingdon-Ward Accepted M TRO
Rhododendron prunifolium (Small) Millais Accepted L TRO
Rhododendron przewalskii Maxim. Accepted M TRO
Rhododendron przewalskii subsp. przewalskii Synonym L TRO
Rhododendron psammogenes Sleumer Unresolved L WCSP (in review)
Rhododendron pseudobuxifolium Sleumer Unresolved L WCSP (in review)
Rhododendron pseudochrysanthum Hayata Accepted M TRO
Rhododendron pseudochrysanthum subsp. morii (Hayata) T. Yamaz. Synonym L TRO
Rhododendron pseudochrysanthum var. nankotaisanense (Hayata) T. Yamaz. Synonym L TRO
Rhododendron pseudochrysanthum f. rufovelutinum T. Yamaz. Synonym L TRO
Rhododendron pseudochrysanthum var. rufovelutinum (T. Yamaz.) T. Yamaz. Synonym L TRO
Rhododendron pseudochrysanthum var. taitunense T. Yamaz. Synonym L TRO
Rhododendron pseudociliicalyx Hutch. Synonym M TRO
Rhododendron pseudociliipes Cullen Accepted M TRO
Rhododendron pseudomurudense Sleumer Unresolved L WCSP (in review)
Rhododendron pseudonitens Sleumer Unresolved L WCSP (in review)
Rhododendron pseudotrichanthum Sleumer Unresolved L WCSP (in review)
Rhododendron pseudoyanthinum Balf. f. & Hutch. Synonym M TRO
Rhododendron psilanthum Sleumer Unresolved L WCSP (in review)
Rhododendron psilostylum (Rehder & E.H. Wilson) Balf. f. Accepted M TRO
Rhododendron pubescens Balf. f. & Forrest Accepted M TRO
Rhododendron pubicostatum T.L. Ming Accepted M TRO
Rhododendron pubigermen J.J.Sm. Unresolved L WCSP (in review)
Rhododendron pubigerum Balf. f. & Forrest Synonym M TRO
Rhododendron pubitubum Sleumer Unresolved L WCSP (in review)
Rhododendron pudiense Xiang Chen & Jia Y.Huang Unresolved L WCSP (in review)
Rhododendron pudorinum Sleumer Unresolved L WCSP (in review)
Rhododendron pudorosum Cowan Accepted M TRO
Rhododendron pugeense L.C. Hu Accepted M TRO
Rhododendron pulchellum Salisb. Unresolved L WCSP (in review)
Rhododendron pulcherrimum Lindl. Unresolved L WCSP (in review)
Rhododendron pulchroides Chun & W.P. Fang Accepted M TRO
Rhododendron pulchrum Sweet Accepted M TRO
Rhododendron pulleanum Koord. Unresolved L WCSP (in review)
Rhododendron pumilum Hook. f. Accepted M TRO
Rhododendron punctatum Andrews Unresolved L WCSP (in review)
Rhododendron punctatum var. chapmanii Alph. Wood Synonym L TRO
Rhododendron punctifolium L.C. Hu Accepted M TRO
Rhododendron × puniceum Planch. Unresolved L WCSP (in review)
Rhododendron puniceum Roxb. Synonym M TRO
Rhododendron puralbum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron purdomii Rehder & E.H. Wilson Accepted M TRO
Rhododendron purpureiflorum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron purpureum Buch.-Ham. ex D.Don Unresolved L WCSP (in review)
Rhododendron purshii G.Don Unresolved L WCSP (in review)
Rhododendron pusillum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron pycnocladum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron pyrrhoanthum Balf. f. Accepted M TRO
Rhododendron × pyrrhoanthum Balf. f. Unresolved L TRO
Rhododendron pyrrhophorum Sleumer Unresolved L WCSP (in review)
Rhododendron qianyangense M.Y. He Accepted M TRO
Rhododendron qiaojiaense L.M.Gao & D.Z.Li Unresolved L WCSP (in review)
Rhododendron qinghaiense Ching ex W.Y. Wang Accepted M TRO
Rhododendron quadrasianum S.Vidal Unresolved L WCSP (in review)
Rhododendron quadrasianum f. monodii H.J.Lam Unresolved L WCSP (in review)
Rhododendron quinquefolium Bisset & S.Moore Unresolved L WCSP (in review)
Rhododendron racemosum Franch. Accepted M TRO
Rhododendron racemosum var. rigidum (Franch.) Rehnelt Synonym L TRO
Rhododendron radendum W.P. Fang Accepted M TRO
Rhododendron radians J.J.Sm. Unresolved L WCSP (in review)
Rhododendron radicans Balf. f. & Forrest Synonym M TRO
Rhododendron radinum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron ramentaceum Planch. Unresolved L WCSP (in review)
Rhododendron ramipilosum T.L. Ming Accepted M TRO
Rhododendron ramosissimum Franch. Synonym M TRO
Rhododendron ramsdenianum Cowan Accepted M TRO
Rhododendron rappardii Sleumer Unresolved L WCSP (in review)
Rhododendron rarilepidotum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron rarosquameum Balf. f. Synonym M TRO
Rhododendron rarum Schltr. Unresolved L WCSP (in review)
Rhododendron rasile Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron ravum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron recurvoides Tagg & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron recurvum Balf. f. & Forrest Synonym M TRO
Rhododendron recurvum var. oreonastes Balf. f. & Forrest Synonym L TRO
Rhododendron redowskianum Maxim. Accepted M TRO
Rhododendron reevei Argent Unresolved L WCSP (in review)
Rhododendron regale Balf. f. & Kingdon-Ward Synonym M TRO
Rhododendron reginaldii Balf. f. & Forrest Synonym M TRO
Rhododendron renschianum Sleumer Unresolved L WCSP (in review)
Rhododendron repens Balf. f. & Forrest Synonym M TRO
Rhododendron repens var. chamaedoron Tagg Synonym L TRO
Rhododendron repens var. chamaethauma Tagg Synonym L TRO
Rhododendron repens var. chamaethomsonii Tagg Synonym L TRO
Rhododendron reticulatum D.Don ex G.Don Unresolved L WCSP (in review)
Rhododendron retivenium Sleumer Unresolved L WCSP (in review)
Rhododendron retrorsipilum Sleumer Unresolved L WCSP (in review)
Rhododendron retusum (Blume) Benn. Accepted M TRO
Rhododendron revolutum Sleumer Unresolved L WCSP (in review)
Rhododendron rex H. Lév. Accepted M TRO
Rhododendron rex subsp. arizelum (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron rex subsp. fictolacteum (Balf. f.) D.F. Chamb. Accepted L TRO
Rhododendron rex subsp. gratum (T.L. Ming) M.Y. Fang Accepted L TRO
Rhododendron rex subsp. rex Synonym L TRO
Rhododendron reynosoi Argent Unresolved L WCSP (in review)
Rhododendron rhabdotum Balf. f. & R.E. Cooper Synonym M TRO
Rhododendron rhaibocarpum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron rhantum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron rhodanthum M.Y. He Accepted M TRO
Rhododendron rhodochroum Sleumer Unresolved L WCSP (in review)
Rhododendron rhododactylum Millais Unresolved L WCSP (in review)
Rhododendron rhodoleucum Sleumer Unresolved L WCSP (in review)
Rhododendron rhodopus Sleumer Unresolved L WCSP (in review)
Rhododendron rhodora J.F.Gmel. Unresolved L WCSP (in review)
Rhododendron rhodosalpinx Sleumer Unresolved L WCSP (in review)
Rhododendron rhodostomum Sleumer Unresolved L WCSP (in review)
Rhododendron rhombicum Miq. Unresolved L WCSP (in review)
Rhododendron rhombifolium R.C. Fang Accepted M TRO
Rhododendron rhuyuenense Chun ex P.C. Tam Accepted M TRO
Rhododendron rigidum Franch. Accepted M TRO
Rhododendron ripaecola P.C.Tam Unresolved L WCSP (in review)
Rhododendron riparioides (Cullen) Cubey Accepted M TRO
Rhododendron riparium Kingdon-Ward Synonym M TRO
Rhododendron ripense Makino Unresolved L WCSP (in review)
Rhododendron ripicola P.C. Tam Synonym M TRO
Rhododendron ripleyi Merr. Unresolved L WCSP (in review)
Rhododendron ririei Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron rivulare Hand.-Mazz. Accepted M TRO
Rhododendron robinsonii Ridl. Unresolved L WCSP (in review)
Rhododendron rockii E.H. Wilson Synonym M TRO
Rhododendron rollissonii Lindl. Unresolved L WCSP (in review)
Rhododendron roseatum Hutch. Accepted M TRO
Rhododendron roseiflorum P.F.Stevens Unresolved L WCSP (in review)
Rhododendron rosendahlii Sleumer Unresolved L WCSP (in review)
Rhododendron roseotinctum Balf. f. & Forrest Synonym M TRO
Rhododendron roseum (Loisel.) Rehder Accepted M TRO
Rhododendron × rosifaciens R.I.Milne Unresolved L WCSP (in review)
Rhododendron rosmarinifolium (Burm. f.) Dippel Synonym M TRO
Rhododendron rosthornii Diels Synonym M TRO
Rhododendron rothschildii Davidian Accepted M TRO
Rhododendron rotundifolium David ex Franch. Synonym M TRO
Rhododendron rousei Argent & Madulid Unresolved L WCSP (in review)
Rhododendron × rovellii Leroy Unresolved L WCSP (in review)
Rhododendron roxieanum Forrest Accepted M TRO
Rhododendron roxieanum var. cucullatum (Hand.-Mazz.) D.F. Chamb. Accepted L TRO
Rhododendron roxieanum var. globigerum (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron roxieanum var. oreonastes (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron roxieanum var. recurvum (Balf. f. & Forrest) Davidian Synonym L TRO
Rhododendron roxieanum var. roxieanum Synonym L TRO
Rhododendron roxieoides D.F. Chamb. Accepted M TRO
Rhododendron roylei Hook. f. Synonym M TRO
Rhododendron rubellum Sleumer Unresolved L WCSP (in review)
Rhododendron rubiginosum Franch. Accepted M TRO
Rhododendron rubiginosum var. leclerei (H. Lév.) R.C. Fang Accepted L TRO
Rhododendron rubiginosum var. rubiginosum Synonym L TRO
Rhododendron rubineiflorum Craven Unresolved L WCSP (in review)
Rhododendron rubrantherum Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron rubrobracteatum Sleumer Unresolved L WCSP (in review)
Rhododendron rubrolineatum Balf. f. & Forrest Synonym M TRO
Rhododendron rubroluteum Davidian Synonym M TRO
Rhododendron rubropilosum Hayata Accepted M TRO
Rhododendron rubropilosum var. breviperulatum (Hayata) T. Yamaz. Synonym L TRO
Rhododendron rubropilosum var. taiwanalpinum (Ohwi) S.Y. Lu, Yuen P. Yang & Y.H. Tseng Synonym L TRO
Rhododendron rubropunctata T.L.Ming Unresolved L WCSP (in review)
Rhododendron rubropunctatum H. Lév. & Vaniot Synonym M TRO
Rhododendron rude Tagg & Forrest Synonym M TRO
Rhododendron rufescens Franch. Accepted M TRO
Rhododendron rufohirtum Hand.-Mazz. Accepted M TRO
Rhododendron rufosquamosum Hutch. Synonym M TRO
Rhododendron rufulum P.C. Tam Synonym M TRO
Rhododendron rufum Batalin Accepted M TRO
Rhododendron rufum var. pachysanthum (Hayata) S.S. Ying Synonym L TRO
Rhododendron rugosum H.Low ex Hook.f. Unresolved L WCSP (in review)
Rhododendron rupicola W.W. Sm. Accepted M TRO
Rhododendron rupicola var. chryseum (Balf. f. & Kingdon-Ward) Philipson & M.N. Philipson Accepted L TRO
Rhododendron rupicola var. muliense (Balf. f. & Forrest) Philipson & M.N. Philipson Accepted L TRO
Rhododendron rupicola var. rupicola Synonym L TRO
Rhododendron rupivalleculatum P.C. Tam Accepted M TRO
Rhododendron rushforthii Argent & D.F. Chamb. Accepted M TRO
Rhododendron russatum Balf. f. & Forrest Accepted M TRO
Rhododendron × russelianum Sweet Unresolved L WCSP (in review)
Rhododendron russotinctum Balf. f. & Forrest Synonym M TRO
Rhododendron ruttenii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron saavedranum Diels Unresolved L WCSP (in review)
Rhododendron saisiuense Nakai Unresolved L WCSP (in review)
Rhododendron sakawanum Makino Unresolved L WCSP (in review)
Rhododendron salicifolium Becc. Unresolved L WCSP (in review)
Rhododendron salignum Hook.f. Unresolved L WCSP (in review)
Rhododendron × salmoneum auct. Unresolved L WCSP (in review)
Rhododendron × salmoneum Voss Unresolved L WCSP (in review)
Rhododendron saluenense Franch. Accepted M TRO
Rhododendron saluenense subsp. chameunum (Balf. f. & Forrest) Cullen in Cullen & D. F. Chamb. Synonym L TRO
Rhododendron saluenense var. prostratum (W.W. Sm.) R.C. Fang Accepted L TRO
Rhododendron saluenense subsp. saluenense Synonym L TRO
Rhododendron saluenense var. saluenense Synonym L TRO
Rhododendron sanctum Nakai Unresolved L WCSP (in review)
Rhododendron sanguineum Franch. Accepted M TRO
Rhododendron sanguineum subsp. aizoides Cowan Synonym L TRO
Rhododendron sanguineum subsp. cloiophorum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum var. cloiophorum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron sanguineum var. consanguinem (Cowan) Davidian Synonym L TRO
Rhododendron sanguineum subsp. consanguineum Cowan Synonym L TRO
Rhododendron sanguineum var. didymoides Tagg & Forrest Accepted L TRO
Rhododendron sanguineum subsp. didymoides (Tagg & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum subsp. didymum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum var. didymum (Balf. f. & Forrest) T.L. Ming Accepted L TRO
Rhododendron sanguineum subsp. haemaleum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum var. haemaleum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron sanguineum subsp. himertum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum var. himertum (Balf. f. & Forrest) D.F. Chamb. Accepted L TRO
Rhododendron sanguineum subsp. leucopetalum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum subsp. melleum Cowan Synonym L TRO
Rhododendron sanguineum subsp. mesaeum Balf. f. ex Cowan Synonym L TRO
Rhododendron sanguineum var. mesaeum Davidian Synonym L TRO
Rhododendron sanguineum subsp. roseotinctum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron sanguineum subsp. sanguineoides Cowan Synonym L TRO
Rhododendron sanguineum var. sanguineoides (Cowan) Davidian Synonym L TRO
Rhododendron sanguineum subsp. sanguineum Synonym L TRO
Rhododendron sanguineum var. sanguineum Synonym L TRO
Rhododendron sanidodeum P.C. Tam Synonym M TRO
Rhododendron santapaui Sastry & al. Unresolved L WCSP (in review)
Rhododendron saravanense Dop Unresolved L WCSP (in review)
Rhododendron sarcodes Argent & Madulid Unresolved L WCSP (in review)
Rhododendron sargentianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron saruwagedicum F.Först. Unresolved L WCSP (in review)
Rhododendron sasakii E.H. Wilson Synonym M TRO
Rhododendron sataense Nakai Unresolved L WCSP (in review)
Rhododendron saxatile B.Y. Ding & Y.Y. Fang Accepted M TRO
Rhododendron saxicola Sleumer Unresolved L WCSP (in review)
Rhododendron saxifragoides J.J.Sm. Unresolved L WCSP (in review)
Rhododendron sayeri Sleumer Unresolved L WCSP (in review)
Rhododendron scabridibracteum Sleumer Unresolved L WCSP (in review)
Rhododendron scabrifolium Franch. Accepted M TRO
Rhododendron scabrifolium var. scabrifolium Synonym L TRO
Rhododendron scabrifolium var. spiciferum (Franch.) Cullen Synonym L TRO
Rhododendron scabrum G.Don Unresolved L WCSP (in review)
Rhododendron scarlatinum Sleumer Unresolved L WCSP (in review)
Rhododendron schadenbergii Warb. Unresolved L WCSP (in review)
Rhododendron schistocalyx Balf. f. & Forrest Accepted M TRO
Rhododendron schizopeplum Balf. f. & Forrest Synonym M TRO
Rhododendron schizostigma Sleumer Unresolved L WCSP (in review)
Rhododendron schlechteri Lauterb. Unresolved L WCSP (in review)
Rhododendron schlippenbachii Maxim. Accepted M TRO
Rhododendron schoddei Sleumer Unresolved L WCSP (in review)
Rhododendron schultzei Schltr. Unresolved L WCSP (in review)
Rhododendron sciaphilum Balf.f. & Kingdon-Ward Unresolved L WCSP (in review)
Rhododendron scintillans Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron sclerocladum Balf. f. & Forrest Synonym M TRO
Rhododendron scopulorum Hutch. Accepted M TRO
Rhododendron scopulum (G.Z. Li) G.Z. Li Accepted M TRO
Rhododendron scortechinii King & Gamble Unresolved L WCSP (in review)
Rhododendron scottiatum Hutch. Unresolved L WCSP (in review)
Rhododendron scyphocalyx Balf. f. & Forrest Synonym M TRO
Rhododendron searleanum Sleumer Unresolved L WCSP (in review)
Rhododendron searsiae Rehder & E.H. Wilson Accepted M TRO
Rhododendron seguinii H. Lév. Synonym M TRO
Rhododendron seimundii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron seinghkuense Kingdon-Ward ex Hutch. Accepted M TRO
Rhododendron × sekidera Komatsu Unresolved L WCSP (in review)
Rhododendron selense Franch. Accepted M TRO
Rhododendron selense subsp. dasycladum (Balf. f. & W.W. Sm.) D.F. Chamb. Accepted L TRO
Rhododendron selense var. dasycladum (Balf. f. & W.W. Sm.) T.L. Ming Synonym L TRO
Rhododendron selense subsp. duseimatum (Balf. f. & Forrest) Tagg Synonym L TRO
Rhododendron selense var. duseimatum (Balf. f. & Forrest) Cowan & Davidian Synonym L TRO
Rhododendron selense subsp. jucundum (Balf. f. & W.W. Sm.) D.F. Chamb. Accepted L TRO
Rhododendron selense var. jucundum (Balf. f. & W.W. Sm.) T.L. Ming Synonym L TRO
Rhododendron selense var. pagophilum (Balf. f. & Kingdon-Ward) Cowan & Davidian Synonym L TRO
Rhododendron selense var. probum (Balf. f. & Forrest) Cowan & Davidian Synonym L TRO
Rhododendron selense subsp. selense Synonym L TRO
Rhododendron selense subsp. setiferum (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron semibarbatum Maxim. Unresolved L WCSP (in review)
Rhododendron semilunatum Balf. f. & Forrest Synonym M TRO
Rhododendron semnoides Tagg & Forrest Accepted M TRO
Rhododendron semnum Balf. f. & Forrest Synonym M TRO
Rhododendron seniavinii Maxim. Accepted M TRO
Rhododendron seniavinii var. crassifolium P.C. Tam Synonym L TRO
Rhododendron seranense J.J.Sm. Unresolved L WCSP (in review)
Rhododendron seranicum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron sericocalyx Balf.f. Unresolved L WCSP (in review)
Rhododendron serotinum Hutch. Accepted M TRO
Rhododendron serpens Balf. f. & Forrest Synonym M TRO
Rhododendron serpyllifolium Miq. Unresolved L WCSP (in review)
Rhododendron serrulatum (Small) Millais Accepted M TRO
Rhododendron sessilifolium J.J.Sm. Unresolved L WCSP (in review)
Rhododendron × sesterianum G.Nicholson Unresolved L WCSP (in review)
Rhododendron setiferum Balf. f. & Forrest Accepted M TRO
Rhododendron setosum D. Don Accepted M TRO
Rhododendron × seymouri Herb. ex Otto & Dietr. Unresolved L WCSP (in review)
Rhododendron shaanxiense W.P. Fang & Z.J. Zhao Synonym M TRO
Rhododendron shangyounicum L.M.Cao & R.L. Liu Unresolved L TRO
Rhododendron shanii W.P. Fang Accepted M TRO
Rhododendron sheilae Sleumer Unresolved L WCSP (in review)
Rhododendron sheltoniae Hemsl. & E.H. Wilson Synonym M TRO
Rhododendron shepherdii Nutt. Synonym M TRO
Rhododendron sherriffii Cowan Accepted M TRO
Rhododendron shikokianum Makino Unresolved L WCSP (in review)
Rhododendron shimenense Q.X. Liu & C.M. Zhang Accepted M TRO
Rhododendron shimianense W.P. Fang & P.S. Liu Accepted M TRO
Rhododendron shimidzuanum Honda ex Makino & Nemoto Unresolved L WCSP (in review)
Rhododendron shiwandashanense P.C. Tam Synonym M TRO
Rhododendron shojoense Hayata Synonym M TRO
Rhododendron shweliense Balf. f. & Forrest Accepted M TRO
Rhododendron siamense Diels Synonym M TRO
Rhododendron siamensis Diels Unresolved L WCSP (in review)
Rhododendron sichotense Pojark. Synonym M TRO
Rhododendron sidereum Balf. f. Accepted M TRO
Rhododendron siderophylloides Hutch. Synonym M TRO
Rhododendron siderophyllum Franch. Accepted M TRO
Rhododendron sieboldii Miq. Unresolved L WCSP (in review)
Rhododendron sigillatum Balf. f. & Forrest Synonym M TRO
Rhododendron sikangense W.P. Fang Accepted M TRO
Rhododendron sikangense var. sikangense Synonym L TRO
Rhododendron sikayotaizanense Masam. Accepted M TRO
Rhododendron sikkimense Pradhan & Lachungpa Unresolved L WCSP (in review)
Rhododendron silvaticum Cowan Synonym M TRO
Rhododendron simiarum Hance Accepted M TRO
Rhododendron simiarum var. deltoideum P.C. Tam Synonym L TRO
Rhododendron simiarum var. simiarum Synonym L TRO
Rhododendron simiarum var. versicolor (Chun & W.P. Fang) M.Y. Fang Accepted L TRO
Rhododendron simiarum subsp. youngiae (W.P. Fang) D.F. Chamb. Synonym L TRO
Rhododendron simsii Planch. Accepted M WCSP (in review)
Rhododendron simsii var. simsii Synonym L TRO
Rhododendron simulans (Tagg & Forrest) D.F.Chamb. Unresolved L WCSP (in review)
Rhododendron simulans J.J.Sm. ex Sleumer Unresolved L WCSP (in review)
Rhododendron sinense Sweet Synonym M WCSP (in review)
Rhododendron sinofalconeri Balf. f. Accepted M TRO
Rhododendron sinogrande Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron sinogrande var. boreale Tagg & Forrest Synonym L TRO
Rhododendron sinolepidotum Balf. f. Synonym M TRO
Rhododendron sinonuttallii Balf. f. & Forrest Accepted M TRO
Rhododendron × sinosimulans D.F. Chamb. Accepted M TRO
Rhododendron sinovaccinioides Balf. f. & Forrest Synonym M TRO
Rhododendron sleumeri Gilli Unresolved L WCSP (in review)
Rhododendron smilesii Hutch. Unresolved L WCSP (in review)
Rhododendron smirnowii Trautv. ex Regel Unresolved L WCSP (in review)
Rhododendron smirnowii Trautv. Unresolved L WCSP (in review)
Rhododendron smithii Nutt. Unresolved L WCSP (in review)
Rhododendron × smithii Sweet Unresolved L WCSP (in review)
Rhododendron × sochadzeae Kharadze & Davlian. Unresolved L WCSP (in review)
Rhododendron sochadzeae Kharadze & Davlian. Unresolved L TRO
Rhododendron sojolense Argent Unresolved L WCSP (in review)
Rhododendron solitarium Sleumer Unresolved L WCSP (in review)
Rhododendron sonomense Greene Unresolved L WCSP (in review)
Rhododendron sophistarum Craven Unresolved L WCSP (in review)
Rhododendron sordidum Hutch. Unresolved L WCSP (in review)
Rhododendron sororium Sleumer Unresolved L WCSP (in review)
Rhododendron souliei Franch. Accepted M TRO
Rhododendron spadiceum P.C. Tam Accepted M TRO
Rhododendron spanotrichum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron sparsiflorum Nutt. Unresolved L WCSP (in review)
Rhododendron sparsifolium W.P. Fang Accepted M TRO
Rhododendron spathulatum Ridl. Unresolved L WCSP (in review)
Rhododendron speciosum Sweet Unresolved L WCSP (in review)
Rhododendron speciosum Salisb. Unresolved L WCSP (in review)
Rhododendron spectabile Merr. Unresolved L WCSP (in review)
Rhododendron sperabile Balf. f. & Farrer Accepted M TRO
Rhododendron sperabile var. sperabile Synonym L TRO
Rhododendron sperabiloides Tagg & Forrest Accepted M TRO
Rhododendron sphaeranthum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron sphaeroblastum Balf. f. & Forrest Accepted M TRO
Rhododendron sphaeroblastum var. sphaeroblastum Synonym L TRO
Rhododendron spiciferum Franch. Accepted M TRO
Rhododendron spiciferum var. spiciferum Synonym L TRO
Rhododendron spilanthum Hutch. Synonym M TRO
Rhododendron spilotum Balf.f. & Farrer Unresolved L WCSP (in review)
Rhododendron spinigerum H. Lév. Synonym M TRO
Rhododendron spinuliferum Franch. Accepted M TRO
Rhododendron spinuliferum var. spinuliferum Synonym L TRO
Rhododendron × spinulosum Hadden Unresolved L WCSP (in review)
Rhododendron spodopeplum Balf.f. & Farrer Unresolved L WCSP (in review)
Rhododendron spondylophyllum F.Muell. Unresolved L WCSP (in review)
Rhododendron spooneri Hemsl. & E.H. Wilson Synonym M TRO
Rhododendron squarrosum Balf.f. Unresolved L WCSP (in review)
Rhododendron stamineum Franch. Accepted M TRO
Rhododendron stamineum var. stamineum Synonym L TRO
Rhododendron × standishii Paxton Unresolved L WCSP (in review)
Rhododendron stapfianum Hemsl. ex Prain Unresolved L WCSP (in review)
Rhododendron stelligerum Sleumer Unresolved L WCSP (in review)
Rhododendron stenaulum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron stenopetalum (Hogg) Mabb. Unresolved L WCSP (in review)
Rhododendron stenophyllum Stapf Unresolved L WCSP (in review)
Rhododendron stenophyllum Makino Unresolved L WCSP (in review)
Rhododendron stenoplastum Balf. f. & Forrest Synonym M TRO
Rhododendron stereophyllum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron stevensianum Sleumer Unresolved L WCSP (in review)
Rhododendron stewartianum Diels Accepted M TRO
Rhododendron stewartianum var. aiolosalpinx (Balf. f. & Farrer) Cowan & Davidian Synonym L TRO
Rhododendron stewartianum var. tantulum Cowan & Davidian Synonym L TRO
Rhododendron stictophyllum Balf. f. Synonym M TRO
Rhododendron stolleanum Schltr. Unresolved L WCSP (in review)
Rhododendron stonori Sleumer Unresolved L WCSP (in review)
Rhododendron stresemannii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron strigillosum Franch. Accepted M TRO
Rhododendron strigillosum var. monosematum (Hutch.) T.L. Ming Accepted L TRO
Rhododendron strigillosum var. strigillosum Synonym L TRO
Rhododendron strigosum R.L. Liu Accepted M TRO
Rhododendron suaveolens Sleumer Unresolved L WCSP (in review)
Rhododendron subansiriense D.F.Chamb. & Cox Unresolved L WCSP (in review)
Rhododendron subarcticum Harmaja Synonym M TRO
Rhododendron subcerinum P.C. Tam Accepted M TRO
Rhododendron subcordatum Becc. Unresolved L WCSP (in review)
Rhododendron subcrenulatum Sleumer Unresolved L WCSP (in review)
Rhododendron subdeciduum Sweet Unresolved L WCSP (in review)
Rhododendron subenerve P.C. Tam Accepted M TRO
Rhododendron subenerve var. nudistylum P.C. Tam Synonym L TRO
Rhododendron suberosum Balf. f. & Forrest Synonym M TRO
Rhododendron subestipitatum Chun ex P.C. Tam Accepted M TRO
Rhododendron subflumineum P.C. Tam Accepted M TRO
Rhododendron sublanceolatum Miq. Unresolved L WCSP (in review)
Rhododendron subpacificum Sleumer Unresolved L WCSP (in review)
Rhododendron subroseum Xiang Chen & Jia Y.Huang Unresolved L WCSP (in review)
Rhododendron subsessile Rendle Unresolved L WCSP (in review)
Rhododendron subulatum (Nakai) Harmaja Accepted M TRO
Rhododendron subuliferum Sleumer Unresolved L WCSP (in review)
Rhododendron subulosum J.J.Sm. ex Sleumer Unresolved L WCSP (in review)
Rhododendron succothii Davidian Unresolved L WCSP (in review)
Rhododendron sugaui Argent Unresolved L WCSP (in review)
Rhododendron sulfureum Franch. Accepted M TRO
Rhododendron sumatranum Merr. Unresolved L WCSP (in review)
Rhododendron superbum Sleumer Unresolved L WCSP (in review)
Rhododendron × superponticum Cullen Unresolved L WCSP (in review)
Rhododendron supranubium Hutch. Synonym M TRO
Rhododendron surasianaum Balf. f. & W. G. Craib Unresolved L TRO
Rhododendron surasianum Balf.f. & Craib Unresolved L WCSP (in review)
Rhododendron sutchuenense Franch. Accepted M TRO
Rhododendron sycnanthum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron syncollum Balf. f. & Forrest Synonym M TRO
Rhododendron syringoideum Sleumer Unresolved L WCSP (in review)
Rhododendron taggianum Hutch. Accepted M TRO
Rhododendron taibaiense Ching & H.P. Yang Accepted M TRO
Rhododendron taichungianum S.S. Ying Accepted M TRO
Rhododendron taiense Hutch. Unresolved L WCSP (in review)
Rhododendron taipaoense T.C. Wu & P.C. Tam Accepted M TRO
Rhododendron taishunense B.Y. Ding & Y.Y. Fang Accepted M TRO
Rhododendron taitungalpinum S.S.Ying Unresolved L WCSP (in review)
Rhododendron taiwanalpinum Ohwi Accepted M TRO
Rhododendron taiwanianum S.S. Ying Synonym M TRO
Rhododendron × takanashianum Sugim. Unresolved L WCSP (in review)
Rhododendron takeuchii Argent Unresolved L WCSP (in review)
Rhododendron taliense Franch. Accepted M TRO
Rhododendron tamaense Davidian Synonym M TRO
Rhododendron tamurae (Makino) Masam. Unresolved L WCSP (in review)
Rhododendron tanakae Hayata Synonym M TRO
Rhododendron tanastylum Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron tanastylum var. pennivenium (Balf. f. & Forrest) D.F. Chamb. Synonym L TRO
Rhododendron tanastylum var. tanastylum Synonym L TRO
Rhododendron tapeinum Balf.f. & Farrer Unresolved L WCSP (in review)
Rhododendron tapelouense H. Lév. Synonym M TRO
Rhododendron tapetiforme Balf. f. & Kingdon-Ward Accepted M TRO
Rhododendron taquetii H.Lév. Unresolved L WCSP (in review)
Rhododendron taronense Hutch. Accepted M TRO
Rhododendron tashiroi Maxim. Accepted M TRO
Rhododendron tatsienense Franch. Accepted M TRO
Rhododendron tatsienense var. tatsienense Synonym L TRO
Rhododendron tatuoi Nakai ex H.Hara Unresolved L WCSP (in review)
Rhododendron tawadae (Ohwi) Ohwi Unresolved L WCSP (in review)
Rhododendron tawangense K.C. Sahni & H.B. Naithani Synonym M TRO
Rhododendron tawangensis K.C.Sahni & H.B.Naithani Unresolved L WCSP (in review)
Rhododendron taxifolium Merr. Unresolved L WCSP (in review)
Rhododendron taxoides J.J.Sm. Unresolved L WCSP (in review)
Rhododendron × taylorii H.J.Veitch Unresolved L WCSP (in review)
Rhododendron × tebotan Komatsu Unresolved L WCSP (in review)
Rhododendron tectum Koidz. Unresolved L WCSP (in review)
Rhododendron telmateium Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron telopeum Balf. f. & Forrest Synonym M TRO
Rhododendron temenium Balf. f. & Forrest Accepted M TRO
Rhododendron temenium subsp. albipetalum Cowan Synonym L TRO
Rhododendron temenium subsp. chrysanthemum Cowan Synonym L TRO
Rhododendron temenium subsp. dealbatum Cowan Synonym L TRO
Rhododendron temenium var. dealbatum (Cowan) D.F. Chamb. Accepted L TRO
Rhododendron temenium subsp. gilvum Cowan Synonym L TRO
Rhododendron temenium var. gilvum (Cowan) D.F. Chamb. Accepted L TRO
Rhododendron temenium subsp. glaphyrum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron temenium subsp. pothinum (Balf. f. & Forrest) Cowan Synonym L TRO
Rhododendron temenium subsp. rhodanthum Cowan Synonym L TRO
Rhododendron temenium subsp. temenium Synonym L TRO
Rhododendron temenium var. temenium Synonym L TRO
Rhododendron tenue Ching ex W.P. Fang & M.Y. He Accepted M TRO
Rhododendron tenuifolium R.C. Fang & S.H. Huang Accepted M TRO
Rhododendron tenuilaminare P.C. Tam Accepted M TRO
Rhododendron tephropeplum Balf. f. & Forrest Accepted M TRO
Rhododendron tetramerum (Makino) Nakai Unresolved L WCSP (in review)
Rhododendron teysmannii Miq. Unresolved L WCSP (in review)
Rhododendron thaumasianthum Sleumer Unresolved L WCSP (in review)
Rhododendron thayerianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron theiochroum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron theiophyllum Balf. f. & Forrest Synonym M TRO
Rhododendron thibaudiense Dombrain Unresolved L WCSP (in review)
Rhododendron thomsonii Hook. f. Accepted M TRO
Rhododendron thomsonii var. cyanocarpum Franch. Synonym L TRO
Rhododendron thomsonii subsp. lopsangianum (Cowan) D.F. Chamb. Accepted L TRO
Rhododendron thomsonii var. lopsangianum (Cowan) T.L. Ming Synonym L TRO
Rhododendron thomsonii subsp. thomsonii Synonym L TRO
Rhododendron thunbergii Planch. Unresolved L WCSP (in review)
Rhododendron thymifolium Maxim. Accepted M TRO
Rhododendron thyodocum Balf.f. & R.E.Cooper Unresolved L WCSP (in review)
Rhododendron tianlinense P.C. Tam Accepted M TRO
Rhododendron tianmenshanense C.L.Peng & L.H.Yan Unresolved L WCSP (in review)
Rhododendron tiantangense G.Z. Li Accepted M TRO
Rhododendron tigrinum Steud. Unresolved L WCSP (in review)
Rhododendron timeteum Balf. f. & Forrest Synonym M TRO
Rhododendron tingwuense P.C. Tam Accepted M TRO
Rhododendron tintinnabellum Danet Unresolved L WCSP (in review)
Rhododendron tolmachevii Harmaja Unresolved L WCSP (in review)
Rhododendron tomentosum Harmaja Synonym L TRO
Rhododendron tomentosum subsp. decumbens (Aiton) Elven & D.F. Murray Synonym L TRO
Rhododendron torquatum Balf. f. & Farrer Synonym M TRO
Rhododendron torquescens D.F. Chamb. Accepted M TRO
Rhododendron torricellense Schltr. Unresolved L WCSP (in review)
Rhododendron tosaense Makino Unresolved L WCSP (in review)
Rhododendron toverenae F.Muell. Unresolved L WCSP (in review)
Rhododendron toxopei J.J.Sm. Unresolved L WCSP (in review)
Rhododendron traillianum Forrest & W.W. Sm. Accepted M TRO
Rhododendron traillianum var. dictyotum (Balf. f. ex Tagg) D.F. Chamb. Accepted L TRO
Rhododendron traillianum var. traillianum Synonym L TRO
Rhododendron trancongii Argent & Rushforth Unresolved L WCSP (in review)
Rhododendron transiens Nakai Unresolved L WCSP (in review)
Rhododendron trichanthum Rehder Accepted M TRO
Rhododendron trichocalyx Ingram Unresolved L WCSP (in review)
Rhododendron trichocladum Franch. Accepted M TRO
Rhododendron trichocladum var. longipilosum Cowan Synonym L TRO
Rhododendron trichogynum L.C. Hu Accepted M TRO
Rhododendron trichomiscum Balf. f. & Forrest Synonym M TRO
Rhododendron trichophlebium Balf. f. & Forrest Synonym M TRO
Rhododendron trichophorum Balf. f. Accepted M TRO
Rhododendron trichopodum Balf. f. & Forrest Synonym M TRO
Rhododendron trichostomum Franch. Accepted M TRO
Rhododendron trichostomum var. ledoides (Balf. f. & W.W. Sm.) Cowan & Davidian Accepted L TRO
Rhododendron trichostomum var. radinum (Balf. f. & W.W. Sm.) Cowan & Davidian Accepted L TRO
Rhododendron trichostomum var. trichostomum Synonym L TRO
Rhododendron × tricolor Sweet Unresolved L WCSP (in review)
Rhododendron triflorum Hook. f. Accepted M TRO
Rhododendron triflorum var. bauhiniiflorum (Watt ex Hutch.) Cullen in Cullen & D. F. Chamb. Accepted L TRO
Rhododendron triflorum subsp. triflorum Synonym L TRO
Rhododendron trilectorum Cowan Accepted M TRO
Rhododendron trinerve Franch. ex H.Boissieu Unresolved L WCSP (in review)
Rhododendron triplonaevium Balf. f. & Forrest Synonym M TRO
Rhododendron tritifolium Balf. f. & Forrest Synonym M TRO
Rhododendron triumphans Yersin & A.Chev. Unresolved L WCSP (in review)
Rhododendron truncatovarium L.M. Gao & D.Z. Li Accepted M TRO
Rhododendron truncatulum Balf. f. & Forrest Synonym L TRO
Rhododendron truncicola Sleumer Unresolved L WCSP (in review)
Rhododendron tsaii W.P. Fang Accepted M TRO
Rhododendron tsangpoense Kingdon-Ward Synonym M TRO
Rhododendron tsangpoense var. curvistylum Kingdon-Ward ex Cowan & Davidian Synonym L TRO
Rhododendron tsangpoense var. pruniflorum (Hutch. & Kingdon-Ward) Cowan & Davidian Synonym L TRO
Rhododendron tsariense Cowan Accepted M TRO
Rhododendron tsariense var. tsariense Synonym L TRO
Rhododendron tsarongense Balf. f. & Forrest Synonym M TRO
Rhododendron tschonoskii Maxim. Unresolved L WCSP (in review)
Rhododendron tsinlingense W.P. Fang ex J.Q. Fu Accepted M TRO
Rhododendron tsoi Merr. Accepted M TRO
Rhododendron tsurugisanense (T.Yamaz.) T.Yamaz. Unresolved L WCSP (in review)
Rhododendron tsusiophyllum Sugim. Unresolved L WCSP (in review)
Rhododendron tuba Sleumer Unresolved L WCSP (in review)
Rhododendron tuberculiferum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron tubiflorum DC. Unresolved L WCSP (in review)
Rhododendron tubiflorum H.Low ex Lindl. Unresolved L WCSP (in review)
Rhododendron tubiforme (Cowan & Davidian) Davidian Accepted M TRO
Rhododendron tubulosum Ching ex W.Y. Wang Accepted M TRO
Rhododendron tuhanensis Argent & T.J.Barkman Unresolved L WCSP (in review)
Rhododendron tutcherae Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron tutcherae var. tutcherae Synonym L TRO
Rhododendron uliginosum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron ultimum Wernham Unresolved L WCSP (in review)
Rhododendron umbelliferum H. Lév. Synonym M TRO
Rhododendron unciferum P.C. Tam Accepted M TRO
Rhododendron undulaticalyx J.J.Sm. Unresolved L WCSP (in review)
Rhododendron undulatum Steud. Unresolved L WCSP (in review)
Rhododendron ungeonticum A.P.Khokhr. & Mazurenko Unresolved L WCSP (in review)
Rhododendron ungernii Trautv. ex Regel Unresolved L WCSP (in review)
Rhododendron ungernii Trautv. Unresolved L WCSP (in review)
Rhododendron uniflorum Hutch. & Kingdon-Ward Accepted M TRO
Rhododendron uniflorum var. imperator (Hutch. & Kingdon-Ward) Cullen Accepted L TRO
Rhododendron uniflorum var. uniflorum Synonym L TRO
Rhododendron urophyllum W.P. Fang Accepted M TRO
Rhododendron uvariifolium Diels Accepted M TRO
Rhododendron uvariifolium var. griseum Cowan Synonym L TRO
Rhododendron uwaense H.Hara & T.Yamanaka Unresolved L WCSP (in review)
Rhododendron vaccinioides Hook. Accepted M TRO
Rhododendron valentinianum Forrest ex Hutch. Accepted M TRO
Rhododendron valentinianum var. changii W.P. Fang Synonym L TRO
Rhododendron valentinianum var. valentinianum Synonym L TRO
Rhododendron vanderbiltianum Merr. Unresolved L WCSP (in review)
Rhododendron vandeursenii Sleumer Unresolved L WCSP (in review)
Rhododendron vanhoeffenii Abrom. Accepted M TRO
Rhododendron vaniotii H. Lév. Accepted M TRO
Rhododendron vanvuurenii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron variolosum Becc. Unresolved L WCSP (in review)
Rhododendron vaseyi A. Gray Accepted M TRO
Rhododendron veitchianum Hook. Unresolved L WCSP (in review)
Rhododendron vellereum Hutch. ex Tagg Accepted M TRO
Rhododendron velutinum Becc. Unresolved L WCSP (in review)
Rhododendron venator Tagg Accepted M TRO
Rhododendron venosum Nutt. Unresolved L WCSP (in review)
Rhododendron venustum Salisb. Unresolved L WCSP (in review)
Rhododendron vernicosum Franch. Accepted M TRO
Rhododendron verruciferum W.K. Hu Accepted M TRO
Rhododendron verruculosum Rehder & E.H. Wilson Accepted M TRO
Rhododendron versicolor Chun & W.P. Fang Synonym M TRO
Rhododendron versteegii J.J.Sm. Unresolved L WCSP (in review)
Rhododendron verticillatum S.Vidal Unresolved L WCSP (in review)
Rhododendron verticillatum H.Low ex Lindl. Unresolved L WCSP (in review)
Rhododendron vesiculiferum Tagg Accepted M TRO
Rhododendron vestitum Tagg & Forrest Synonym M TRO
Rhododendron vialii Delavay & Franch. Accepted M TRO
Rhododendron viburnifolium W.P. Fang Synonym M TRO
Rhododendron vicarium Balf. f. Synonym M TRO
Rhododendron vicinum Balf. f. & Forrest Synonym M TRO
Rhododendron × victorianum Cuvelier Unresolved L WCSP (in review)
Rhododendron vidalii Rolfe Unresolved L WCSP (in review)
Rhododendron villosulum J.J.Sm. Unresolved L WCSP (in review)
Rhododendron villosum Hemsl. & E.H.Wilson Unresolved L WCSP (in review)
Rhododendron villosum Roth Unresolved L WCSP (in review)
Rhododendron vilmorinianum Balf. f. Synonym M TRO
Rhododendron vinicolor Sleumer Unresolved L WCSP (in review)
Rhododendron vinkii Sleumer Unresolved L WCSP (in review)
Rhododendron violaceum Rehder & E.H. Wilson Synonym M TRO
Rhododendron virgatum Hook. f. Accepted M TRO
Rhododendron virgatum var. glabriflorum K.M. Feng ex R.C. Fang Synonym L TRO
Rhododendron virgatum var. oleifolium Demoly Synonym L TRO
Rhododendron virgatum subsp. oleifolium (Franch.) Cullen Synonym L TRO
Rhododendron viridescens Hutch. Accepted M TRO
Rhododendron viriosum Craven Unresolved L WCSP (in review)
Rhododendron viscidifolium Davidian Accepted M TRO
Rhododendron viscidum C.Z. Guo & Z.H. Liu Accepted M TRO
Rhododendron viscigemmatum P.C. Tam Accepted M TRO
Rhododendron viscistylum Nakai Unresolved L WCSP (in review)
Rhododendron viscistylum var. hyugaense T.Yamaz. Unresolved L WCSP (in review)
Rhododendron × viscosepalum Rehder Unresolved L WCSP (in review)
Rhododendron viscosum (L.) Torr. Accepted L TRO
Rhododendron viscosum var. aemulans Rehder Unresolved L WCSP (in review)
Rhododendron viscosum var. montanum Rehder Unresolved L WCSP (in review)
Rhododendron viscosum f. viscosum Synonym L TRO
Rhododendron viscosum var. viscosum Synonym L TRO
Rhododendron vitis-idaea Sleumer Unresolved L WCSP (in review)
Rhododendron vittatum Planch. Unresolved L WCSP (in review)
Rhododendron vonroemeri Koord. Unresolved L WCSP (in review)
Rhododendron wadanum Makino Unresolved L WCSP (in review)
Rhododendron wallaceanum Millais Unresolved L WCSP (in review)
Rhododendron wallichii Hook. f. Accepted M TRO
Rhododendron walongense Kingdon-Ward Accepted M TRO
Rhododendron wardii W.W. Sm. Accepted M TRO
Rhododendron wardii var. puralbum (Balf. f. & W.W. Sm.) D.F. Chamb. Accepted L TRO
Rhododendron wardii var. wardii Synonym L TRO
Rhododendron warianum Schltr. Unresolved L WCSP (in review)
Rhododendron warrenii J.F.Macbr. Unresolved L WCSP (in review)
Rhododendron washingtonianum Millais Unresolved L WCSP (in review)
Rhododendron × watereri E.H. Wilson Unresolved L TRO
Rhododendron watsonii Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron wattii Cowan Unresolved L WCSP (in review)
Rhododendron websterianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron websterianum var. websterianum Synonym L TRO
Rhododendron weldianum Rehder & E.H. Wilson Synonym M TRO
Rhododendron wentianum Koord. Unresolved L WCSP (in review)
Rhododendron westlandii Hemsl. Accepted M TRO
Rhododendron weyrichii Maxim. Accepted M TRO
Rhododendron whiteheadii Rendle Unresolved L WCSP (in review)
Rhododendron wightii Hook. f. Accepted M TRO
Rhododendron wilhelminae Hochr. Unresolved L WCSP (in review)
Rhododendron wilkiei Argent Unresolved L WCSP (in review)
Rhododendron williamsianum Rehder & E.H. Wilson Accepted M TRO
Rhododendron williamsii Merr. ex H.F.Copel. Unresolved L WCSP (in review)
Rhododendron willmottiae auct. Unresolved L WCSP (in review)
Rhododendron wilsoniae Hemsl. & E.H. Wilson Synonym M TRO
Rhododendron wilsoniae var. ionanthum W.P. Fang Synonym L TRO
Rhododendron wilsonii Nutt. ex Hook. Unresolved L WCSP (in review)
Rhododendron wiltonii Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron windsorii Nutt. Synonym M TRO
Rhododendron wollastonii Wernham Unresolved L WCSP (in review)
Rhododendron wolongense W.K. Hu Accepted M TRO
Rhododendron womersleyi Sleumer Unresolved L WCSP (in review)
Rhododendron wongii Hemsl. & E.H. Wilson Accepted M TRO
Rhododendron wrayi King & Gamble Unresolved L WCSP (in review)
Rhododendron wrightianum Koord. Unresolved L WCSP (in review)
Rhododendron wuense Balf. f. Synonym M TRO
Rhododendron wumingense W.P. Fang Accepted M TRO
Rhododendron wuyishanicum L.K.Ling Unresolved L WCSP (in review)
Rhododendron xanthanthum (Tagg & Forrest) D.F. Chamb. Accepted M TRO
Rhododendron xanthinum Balf. f. & W.W. Sm. Synonym M TRO
Rhododendron xanthocodon Hutch. Accepted M TRO
Rhododendron xanthoneuron H. Lév. Synonym M TRO
Rhododendron xanthopetalum Merr. Unresolved L WCSP (in review)
Rhododendron xanthostephanum Merr. Accepted M TRO
Rhododendron xenium Gill.K.Br. & Craven Unresolved L WCSP (in review)
Rhododendron xiangganense X.F.Jin & B.Y.Ding Unresolved L WCSP (in review)
Rhododendron xiaoxidongense W.K. Hu Accepted M TRO
Rhododendron xichangense Z.J. Zhao Accepted M TRO
Rhododendron xiguense Ching & H.P. Yang Accepted M TRO
Rhododendron xinganense G.Z.Li Unresolved L WCSP (in review)
Rhododendron xiushanense W.P. Fang Synonym M TRO
Rhododendron xizangense W.P. Fang & W.K. Hu Synonym M TRO
Rhododendron yakuinsulare Masam. Unresolved L WCSP (in review)
Rhododendron yakumontanum Masam. Unresolved L WCSP (in review)
Rhododendron yakumontanum (T.Yamaz.) T.Yamaz. Unresolved L WCSP (in review)
Rhododendron yakushimanum Nakai Unresolved L WCSP (in review)
Rhododendron yakushimense (M.Tash. & H.Hatta) Craven Unresolved L WCSP (in review)
Rhododendron yangmingshanense P.C. Tam Accepted M TRO
Rhododendron yanthinum Bureau & Franch. Synonym M TRO
Rhododendron yanthinum var. lepidanthum Rehder & E.H. Wilson Synonym L TRO
Rhododendron yaogangxianense Qi-xian Liu Accepted M TRO
Rhododendron yaoshanense L.M. Gao & S.D. Zhang Accepted M TRO
Rhododendron yaoshanicum W.P. Fang & M.Y. He Accepted M TRO
Rhododendron yaragongense Balf. f. Synonym M TRO
Rhododendron yedoense Maxim. ex Regel Unresolved L WCSP (in review)
Rhododendron yelliottii Warb. Unresolved L WCSP (in review)
Rhododendron yizhangense Qi-xian Liu Accepted M TRO
Rhododendron yongii Argent Unresolved L WCSP (in review)
Rhododendron youngiae W.P. Fang Synonym M TRO
Rhododendron yuefengense G.Z. Li Accepted M TRO
Rhododendron yulingense W.P. Fang Synonym M TRO
Rhododendron yungchangense Cullen Accepted M TRO
Rhododendron yungningense Balf. f. ex Hutch. Accepted M TRO
Rhododendron yunnanense Franch. Accepted M TRO
Rhododendron yunyianum X.F.Jin & B.Y.Ding Unresolved L WCSP (in review)
Rhododendron yushuense Z.J. Zhao Accepted M TRO
Rhododendron zaleucum Balf. f. & W.W. Sm. Accepted M TRO
Rhododendron zaleucum var. zaleucum Synonym L TRO
Rhododendron zekoense Y.D. Sun & Z.J. Zhao Accepted M TRO
Rhododendron zeylanicum Loudon Unresolved L WCSP (in review)
Rhododendron zeylanicum Booth Unresolved L WCSP (in review)
Rhododendron zhangjiajieense C.L. Peng & L.H. Yan Accepted M TRO
Rhododendron zheguense Ching & H.P. Yang Accepted M TRO
Rhododendron zhongdianense L.C. Hu Accepted M TRO
Rhododendron ziyuanense P.C. Tam Accepted M TRO
Rhododendron ziyuanense var. pachyphyllum (W.P. Fang) G.Z. Li Synonym L TRO
Rhododendron ziyuanense var. ziyuanense Synonym L TRO
Rhododendron zoelleri Warb. Unresolved L WCSP (in review)
Rhododendron zollingeri J.J.Sm. Unresolved L WCSP (in review)