What is "ampelamus"

Ampelamus is a genus of plants in family Asclepiadaceae, first described in 1819. It is native to Colombia and to eastern North America.

1. Ampelamus laevis (Michx.) Krings (synonyms A. albidus, A. riparius, Cynanchum laeve, Gonolobus laevis, Vincetoxicum gonocarpos var. laevis) - C + E United States, Ontario
2. Ampelamus volubilis (Turcz.) Dugand (synonyms Enslenia volubilis, Gonolobus volubilis, Nematuris volubilis) - Colombia

transferred to Cynanchum

• Ampelamus ligulatus (Benth.) A.Heller, synonym of Cynanchum ligulatum (Benth.) Woodson