Asclepias viridiflora Rafinesque. Phen: (Apr-) May-Aug; Aug-Sep. Hab: Open woodlands, woodland edges, barrens, glades, especially over mafic or calcareous rocks, and also in disturbed areas. Dist: CT west to s. ON, MB, ND, and MT, south to NC, SC, GA, Panhandle FL, AL, LA, TX, n. Mexico, NM, and AZ.
Origin/Endemic status: Native
Syn: = Ar, C, Fl5, GrPl, Il, K1, K3, K4, Mi, Mo2, NcTx, NE, NY, Pa, RAB, Tn, Tx, Va, W, WH3, Woodson (1954); = Acerates viridiflora – G, S; > Asclepias viridiflora var. lanceolata – F; > Asclepias viridiflora var. viridiflora – F