Lasthenia gracilis

Lasthenia gracilis, the needle goldfields, is an annual plant with yellow flowers that grows in California and Arizona in southwestern United States, and Baja California in northwestern Mexico. It is in the genus Lasthenia of the family Asteraceae.

Description
Lasthenia gracilis is a generally hairy herb, up to 400 mm tall, branched or unbranched. The leaf is 8 - 70 mm, linear to oblanceolate, without teeth and more or less hairy. The involucre is 5 - 10 mm. The flower head has 6 to 13 ray flowers 5 - 10 mm long. The disk flowers are numerous.