Oenothera gaura W.L. Wagner & Hoch. Phen: Jun-Oct. Hab: Barrens, glades, woodlands, roadsides, streambanks, fields, disturbed areas. Dist: MA and NY west to WI, se. MN, and IA, south to sw. NC, c. GA (Jones & Coile 1988), sc. TN, and c. IL. Reports from the Gulf and Southern Atlantic Coastal Plain appear to be based on misidentification of O. simulans and O. filiformis.
Origin/Endemic status: Native
Synonymy: = FNA10, K3, K4, Mi, NE, NY, Va, Wagner, Hoch, & Raven (2007); = Gaura biennis L. – Il, K1, Pa, Q, RAB, S, Tn, W, WV; = Gaura biennis L. var. biennis – C, F, G, Munz (1938), Munz (1965)