Synonyms
Vincetoxicum purpurascens Unknown author
Cynanchum × vernyi (Franch. & Sav.) Matsum.
Vincetoxicum japonicum var. purpurascens (C.Morren & Decne.) Maxim.
Vincetoxicum × verreyi Franch. & Sav.
Cynanchum japonicum var. purpurascens (C.Morren & Decne.) Matsum.
Asclepias × purpurascens Georgi
Cynanchum × purpurascens (C.Morren & Decne.) Matsum.