Family: Onagraceae
[Camissonia pallida (Abrams) Raven, more..., Camissonia pallida subsp. pallida , Oenothera abramsii J.F. Macbr., Oenothera micrantha var. exfoliata (A. Nels.) Munz, Sphaerostigma pallida Abrams, Sphaerostigma pallidum Abrams]
Richard Zmasek