notes NOTE: You may comment on the ID or other aspects of this post at this associated Flickr URL. This is another view of the plant seen in this companion post, where the relationship between ''sun'' and ''shade'' variants of Gilia achilleifolia and its two subspecies is discussed.
Note that on this plant the flowers are mostly solitary on slender pedicels and that, simultaneously, the inflorescence pubescence consists of dense, white, crisped hairs. Those are mutually conflicting characters for the two subspecies of G. achilleifolia, as commonly circumscribed (e.g. in the Jepson Manual and the flora of Mt Diablo by Ertter & Bowerman).
I believe this apparent inconsistency can be understood by noting that the seed for this plant and nearby ones came from plants located under the fairly deep shape of a cluster of formerly full-canopied oaks. But these plants...being the first generation to germinate after a fire...were growing in the much more meager partial shade of the burnt trunks and branches of the formerly foliaceous oaks. Again, see the remarks in this companion post for more details.