Chylismia heterochroma (S. Watson) Small  

Family: Onagraceae

Shockley's evening primrose, more...Shockley's suncup

[Camissonia heterochroma (S. Watson) P.H. Raven, moreCamissonia heterochroma ssp. monoensis (Munz) P.H. Raven, Camissonia heterochroma var. monoensis (Munz) Cronquist, Oenothera heterochroma S. Watson, Oenothera heterochroma ssp. monoensis (Munz) P.H. Raven, Oenothera heterochroma var. monoensis Munz]