Oenothera rhombipetala Nuttall ex Torrey & A. Gray. Longspike Evening-primrose, Sand Evening-primrose. Phen: May-Oct. Hab: Riverbanks, prairies, disturbed areas. Dist: MI, WI, MN, and ND south to w. LA, TX, and se. NM.
Origin/Endemic status: Native
Synonymy: = Ar, C, F, FNA10, G, GrPl, Il, K3, K4, Mi, NcTx, Tx, Wagner, Hoch, & Raven (2007)
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