Oenothera glauca Michaux. Common name: Glaucous Sundrops. Phenology: May-Aug. Habitat: Cliffs, rocky streambanks, moist forests over sedimentary rock. Distribution: Cumberland Plateau and Ridge and Valley of KY, TN, and GA.
ID notes: Very distinctive and unlikely to be confused with any other members of the complex; glabrous throughout, strongly glaucous on leaves and inflorescence.
Origin/Endemic status: Endemic
Synonymy ⓘ: = Kneiffia glauca (Michx.) Spach — S; < Oenothera fruticosa L. ssp. glauca (Michx.) Straley — Pa, W, Straley (1977); < Oenothera fruticosa L. ssp. tetragona (Roth) W.L.Wagner — FNA10, K4, NY, Wagner (2014); < Oenothera tetragona Roth — C, Tn, Va; < Oenothera tetragona Roth ssp. glauca (Michx.) Munz — Munz (1965)
Links to other floras: < Oenothera fruticosa ssp. tetragona - FNA10
Heliophily ⓘ: 5
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Horticultural Information
No horticultural data found for this taxon.