Caulanthus cooperi
A minutely strigose but otherwise rather nondescript member of the tribe Thelypodieae, found in the Mojave Desert and peripherally in the adjacent Sonoran Desert.
Inflorescences on Darwin Mesa, west side of Panamint Valley, California, 27 Mar 2009.
Closer view of a flower, Darwin Mesa, 27 Mar 2009.
Cauline leaves & buds, Darwin Mesa, 27 Mar 2009.