We can't list the botanical name of that cultivar as Hemerocallis fulva var. rosea because H. fulva var. rosea has been reclassified as a synonym for H. fulva var. fulva.
http://www.catalogueoflife.org...
In general, we can't use the same species list as the AHS because the AHS list (Dr. Plodeck's list) is outdated. It includes many obsolete names that have been reclassified as mere synonyms. In addition, our species entries have Latin botanical names and do not include non-Latin elements (such as Margaret Perry), and the AHS species list is mistaken in some cases. H. littorea is an accepted name, for instance, but the AHS list classifies it as a synonym for H. fulva var. littorea.
http://www.catalogueoflife.org...
