Canada's Plant Hardiness Site

Synonymy

Apocynaceae family
Asclepias quadrifolia Jacq.
En: whorled milkweed, fourleaf milkweed;
Fr: asclépiade à quatre feuilles
    • [=Asclepias quadrifolia Jacq. var. lanceolata Decne.1844, non Alph.Wood 1861]
    • [=Asclepias quadrifolia Jacq. var. oppositifolia Raf.]
    • [=Asclepias vanilla Raf.]