Oenothera serrulata Nuttall. Common name: Plains Sundrops. Phenology: Mar-Sep. Habitat: Riverbanks, prairies. Distribution: ON west to AB, south to w. KY (Jones 2005), w. AR, s. TX, s. NM, and s. AZ.
Origin/Endemic status: Native
Taxonomy Comments: Sometimes treated as Calylophus serrulatus (see synonymy), but better included in a broadly-circumscribed Oenothera, based on Wagner, Hoch, & Raven (2007).
Synonymy ⓘ: = F, G, Mi, Mo3, NE, Wagner, Hoch, & Raven (2007); = Calylophus serrulatus (Nutt.) Raven — C, GrPl, Il, NcTx; > Calylophus australis Towner & Raven — Tx; > Calylophus serrulatus (Nutt.) Raven — Tx; > Meriolix drummondiana (Spach) Small — S13; > Meriolix intermedia Rydb. — S13; > Meriolix serrulata (Nutt.) Walp. — S13; > Meriolix spinulosa (Torr. & A.Gray) — S13; < Oenothera serrulata Nutt. — FNA10, K4. Basionym: Oenothera serrulata Nutt. 1818
Links to other floras: < Oenothera serrulata - FNA10
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Heliophily ⓘ: 9
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