Helianthus californicus

About

Helianthus californicus is a North American species of sunflower known by the common name California sunflower. It is native to California in the United States and Baja California in Mexico, where it grows in many types of habitats. Classified within the Asteraceae family, it forms dense colonies in grasslands, riparian zones, and coastal foothills. Unlike the cultivated Helianthus annuus, H. californicus is a native and wild species that supports California’s ecology.

Summary from Wikipedia