| Hauya arborea (Kellogg) Curran |
Synonym |
 |
TRO |
|
| Hauya barcenae Hemsl. |
Synonym |
 |
TRO |
|
| Hauya californica S.Watson |
Unresolved |
 |
WCSP (in review) |
|
| Hauya cornuta Hemsl. |
Synonym |
 |
WCSP (in review) |
|
| Hauya donnellsmithii Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya elegans DC. |
Accepted |
 |
TRO |
|
| Hauya elegans subsp. barcenae (Hemsl.) P.H. Raven & Breedlove |
Accepted |
 |
TRO |
|
| Hauya elegans subsp. cornuta (Hemsl.) P.H.Raven & Breedlove |
Accepted |
 |
WCSP (in review) |
|
| Hauya elegans subsp. elegans |
Synonym |
 |
TRO |
|
| Hauya elegans subsp. lucida (Donn.Sm. & Rose) P.H.Raven & Breedlove |
Synonym |
 |
WCSP (in review) |
|
| Hauya glauca Standl. & L.O.Williams |
Synonym |
 |
WCSP (in review) |
|
| Hauya hemsleyana Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya heydeana Donn.Sm. |
Synonym |
 |
WCSP (in review) |
|
| Hauya lemnophila Donn.Sm. & Rose |
Synonym |
 |
WCSP (in review) |
|
| Hauya longicornuta Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya longicornuta var. oblongifolia Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya longicornuta var. ovalifolia Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya lucida Donn.Sm. & Rose |
Synonym |
 |
WCSP (in review) |
|
| Hauya lundellii Standl. |
Synonym |
 |
WCSP (in review) |
|
| Hauya matudae Lundell |
Synonym |
 |
WCSP (in review) |
|
| Hauya microcerata Donn.Sm. & Rose |
Synonym |
 |
WCSP (in review) |
|
| Hauya pedicellata Loes. |
Synonym |
 |
WCSP (in review) |
|
| Hauya purpusii Munz |
Synonym |
 |
TRO |
|
| Hauya quercetorum Donn.Sm. & Rose |
Synonym |
 |
WCSP (in review) |
|
| Hauya rodriguezii Donn.Sm. |
Synonym |
 |
WCSP (in review) |
|
| Hauya ruacophila Donn.Sm. & Rose |
Synonym |
 |
WCSP (in review) |
|
| Hauya rusbyi Donn. Sm. & Rose |
Synonym |
 |
TRO |
|
| Hauya standleyi Munz |
Synonym |
 |
TRO |
|