Oenothera villosa Thunberg ssp. villosa . Hairy Evening-primrose. Phen: Jun-Oct. Hab: Prairies, eastwards naturalized in fields, roadsides, other disturbed areas. Dist: ON west to AB, south to AR and TX.

Origin/Endemic status: Native

Synonymy: = Ar, FNA10, GrPl, K1, K3, K4, NE, NY, Dietrich, Wagner, & Raven (1997), Wagner, Hoch, & Raven (2007); < Oenothera biennis L. – Va; ? Oenothera biennis L. var. canescens Torr. & A.Gray – C, F; ? Oenothera strigosa (Rydb.) Mack. & Bush – G; ? Oenothera strigosa (Rydb.) Mack. & Bush ssp. canovirens (Steele) Munz – Munz (1965); < Oenothera villosa Thunb. – Il, Mi, Pa, Tn

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