Oenothera heterophylla Spach ssp. orientalis W. Dietrich, Raven, & W.L. Wagner. Common name: Alabama Evening-primrose. Phenology: May-Jul. Habitat: Xeric fluvial sand ridges and barrens, other open, sandy areas. Distribution: Endemic to w. AL (Pickens and Sumter counties), sw. AR, and MS (Tombigbee barrens, J. Kees, pers.comm. 2021).
Origin/Endemic status: Endemic
Synonymy ⓘ: = Ar, FNA10, K4, Wagner, Hoch, & Raven (2007); < Oenothera heterophylla Spach — S13. Basionym: Oenothera heterophylla Spach ssp. orientalis W.Dietr., Raven, & W.L.Wagner 1983
Links to other floras: = Oenothera heterophylla ssp. orientalis - FNA10
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Heliophily ⓘ: 9
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