Canada's Plant Hardiness Site

Apocynaceae dogbane family
Cynanchum louiseae Kartesz & Gandhi
En: black dog-strangling vine, black swallowwort, Louise's swallowwort;
Fr: dompte-venin noir, cynanche noire, cynaque noir

• [=Asclepias nigra L. (basionym)]
• [=Cynanchum louiseae Kartesz & Gandhi]
• [=Cynanchum medium R.Br.]
• [=Cynanchum nigrum (L.) Pers., nom. illeg. hom., non Cav.]
• [=Vincetoxicum medium (R.Br.) Kostel.]
• [=Vincetoxicum nigrum (L.) Moench]