Coreopsis californica

Coreopsis californica is a North American species of tickseed in the family Asteraceae.

Distribution
Coreopsis californica var. californica is found in dry habitats of California (U.S.) and Baja California state in northwestern (Mexico). It grows at elevations of 30 - 600 m. The plant grows in the washes of the San Joaquin Valley, southern Inner California Coast Ranges, and Transverse Ranges; and bajadas of the Mojave Desert,  Colorado Desert, and Sonoran Desert.

Description
Coreopsis californica is an annual herb up to 30 cm (12 inches) tall. It has linear leaves that are generally basal and 2 - 10 cm long. The yellow flower heads have both ray florets and disc florets and appear from March to May.