Oenothera species 2 . Sharp's Sundrops. Hab: Cumberland Plateau oak savannas and prairies. Dist: Known from the Eastern Highland Rim of TN.
Origin/Endemic status: Endemic
Synonymy: = Oenothera tetragona Roth ssp. tetragona var. sharpii – Munz (1965); < Oenothera fruticosa L. ssp. fruticosa – FNA10, K1, K3, K4, W, Straley (1977), Wagner, Hoch, & Raven (2007); < Oenothera fruticosa L. ssp. tetragona (Roth) W.L.Wagner – Wagner (2014); < Oenothera tetragona Roth – Tn
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