Asclepias viridiflora Raf.

Erect to prostrate, 3–8 dm, thinly hairy; lvs lanceolate to linear or broadly oblong, elliptic, or ovate-oblong, scabrous on the margin, thinly hairy beneath; umbels lateral, densely fld, sessile or on peduncles to 2 cm; cor pale green, its lobes 6–8 mm; hoods narrowly elliptic-oblong, 4–5.5 mm long, appressed to the gynostegium, the base adjacent to the cor, the obtuse or subacute summit reaching well beyond the salient angle of the anther-wings or even to the top of the gynostegium; horns none. Dry upland woods, prairies, and barrens, especially in sandy soil; Conn. and s. N.Y. to Mich. and Man., s. to Ga., Ariz., and n. Mex., commoner westward. July, Aug. (Acerates v.)

Sandy, gravelly or calcareous soils in prairies. Glades, prairies, plains, and rocky or sandy hillsides, spreading to old fields and roadsides.

Plants can be grown from seed or cuttings.