Family: Onagraceae
[Camissonia walkeri subsp. walkeri , more..., Camissonia walkeri var. walkeri (A. Nelson) P.H. Raven, Clylismia walkeri A. Nels., Oenothera multijuga var. orientalis Munz, Oenothera walkeri (A. Nels.) Raven]
![(linked from Camissonia walkeri subsp. walkeri) Chylismia walkeri subsp. walkeri image](https://serv.biokic.asu.edu/imglib/h_seinet/seinet/Onagraceae/3cawa3.jpg)
Photo ©Al Schneider, swcoloradowildflowers.com