I knew there was some "name drift" even in binomial nomenclature, but I didn't realize it was so widespread.
I used to think that the problems of synonyms and ambiguous names were confined to common names.
I have to say that it delights me to find that even sober and dedicated professionals have trouble forcing plants into rigid and unchanging categories!
I'm sorry, Carl Linnaeus, (or should I say "Carolus Linnæus" or "Carolus a Linné"?), but I think it is :
Plants 1
Taxonomists 0