Oenothera sessilis (Pennell) Munz. Prairie Sundrops. Phen: Nov. Hab: Marshy areas. Dist: AR south to w. LA and se. TX.
Origin/Endemic status: Endemic
Synonymy: = FNA10, K4, Tx; = Oenothera pilosella Raf. ssp. sessilis (Pennell) Straley – Ar, K3
Heliophily: 9
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