Asclepias viridiflora is a perennial 30-80 cm tall, stems erect to prostrate, often numerous in same area, possibly colonial.
Leaves opposite, shape very variable, thick, oval to lance-shaped , tip blunt.
Flowers green, radially symmetrical (see Asclepias Genus), about 1 cm long, crowded, in umbrella-shaped clusters with little or no stalk.
Fruit dry, pods 8-11 cm long, slender, splitting open to release seeds with silky tufts of hairs.
Wetland status: UPL.
Frequency in NYC: NYS Rare, S2, T.
Habitat: Dry open, sandy soil or rocky barrens.
Notes: Insect herbivores mostly Hemiptera (bugs), (Wilbur 1976).