Oenothera elata Kunth ssp. hirsutissima (A. Gray ex S. Watson) W. Dietrich. Hooker's Evening Primrose. Phen: (Apr-) Jul-Sep (-Oct). Hab: Moist sites in floodplains, fallow fields, and other disturbed areas. Dist: KS, CO, ID, and WA south to e. OK, e. TX, w. TX, NM, AZ, CA, and Mexico.
Origin/Endemic status: Native
Synonymy: = FNA10, GrPl, K3, K4; = Oenothera biennis L. var. hirsutissima A.Gray – F; = Oenothera hookeri Kunth ssp. hirsutissima (A.Gray ex S.Watson) Munz – Tx; < Oenothera elata Kunth – Mex
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW (name change)
- Eastern Mountains and Piedmont: FACU (name change)
- Great Plains: FACW (name change)
- Midwest: FACW (name change)
Heliophily: 7
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