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-26001337,A,Polygonaceae,,Rheum,,"undulatum",,"","L.",Synonym,,M,TRO,26001337,,"Sp. Pl. (ed. 2)","2: 531","531","1762",kew-2425570 tro-50136154,A,Polygonaceae,,Rheum,,"undulatum",var.,"longifolium","C.Y. Cheng & T.C. Kao",Synonym,,L,TRO,50136154,888612-1,"Acta Phytotax. Sin.","13(3): 79","79","1975",kew-2425570