*Oenothera nuttallii Sweet. Nuttall's Evening-primrose. Phen: Jun-Sep. Hab: Disturbed areas. Dist: ON west to AB, south to MN, KS, CO, and UT, and introduced eastwards in c. IL, MI, and WI.
Origin/Endemic status: Native
Synonymy: = C, F, FNA10, GrPl, Il, K3, K4, Mi; = Anogra nuttallii Spach
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