from wildflowers.org
Calylophus berlandieri ssp. pinifolius (Engelm. ex Gray) Towner
Berlandier's sundrops, Square-bud primrose, Sundrops, Square-bud day-primrose
Onagraceae (Evening-Primrose Family)

I have been trying to pin down this flower and probably have called it other things on iNat. But this looks like what they have on wildflowers.org as this subspecies