Yellow-rayed Goldfield's (Lasthenia glabrata)

Lasthenia glabrata is a species of flowering plant in the daisy family known by the common name yellowray goldfields. It is endemic to California, where it is a resident of vernal pools and other moist areas in a number of habitat types. This is a daisylike annual herb growing up to about half a meter in maximum height. The thin stem has a few pairs of oppositely-arranged, smooth-edged linear leaves each up to 15 centimeters long. The plant flowers in solitary or loosely clustered flower heads with golden yellow disc and ray florets. The fruit is an achene a few millimeters long with no pappus. Description from Calscape.