Oenothera tetragona Roth [ Oenothera fraseri Pursh]
      
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12 710626 Oenothera tetragona Roth [80 710043 Oenothera fraseri Pursh] Onagraceae
W. Curtis, Bot. Mag., vol. 40 : t. 1674 (1814) [S.T. Edwards]