Oenothera caespitosa ssp. navajoensis W.L. Wagner, Stockhouse & Klein  

Family: Onagraceae

Navajo evening-primrose

[Oenothera caespitosa var. navajoensis (W.L. Wagner, Stockhouse & Klein) Cronq., moreOenothera cespitosa ssp. navajoensis W.L. Wagner, Stockhouse & Klein [orthographic variant], Oenothera cespitosa var. navajoensis (W.L. Wagner, Stockhouse & Klein) Cronq. [orthographic variant]]