ID,Major group,Family,Genus hybrid marker,Genus,Species hybrid marker,Species,Infraspecific rank,Infraspecific epithet,Authorship,Taxonomic status in TPL,Nomenclatural status from original data source,Confidence level,Source,Source id,IPNI id,Publication,Collation,Page,Date,Accepted ID tro-50250807,A,Polygonaceae,,Rheum,,"tanguticum",,"","Maxim. ex Balf.",Accepted,,M,TRO,50250807,696803-1,"Trans. Bot. Soc. Edinburgh","13: 435-436, pl. 14","435","1879", tro-50136391,A,Polygonaceae,,Rheum,,"tanguticum",var.,"tanguticum","",Accepted,,L,TRO,50136391,,"","","","", tro-50095421,A,Polygonaceae,,Rheum,,"tanguticum",var.,"viridiflorum","Y.K. Yang & D.K. Zhang",Synonym,,L,TRO,50095421,969958-1,"Acta Bot. Boreal.-Occid. Sin.","12(4): 311-312","311","1992",tro-50136391