Serpentine Sunflower

Helianthus exilis is a member of the Asteraceae family and is part of the Helianthus genus, which includes various sunflower species. This plant is endemic to northern California, where it thrives in mountainous terrain. It is frequently associated with serpentine soils, which are known for their unique mineral composition and low fertility. The species was first described in 1865 by A. Gray. Its distribution is primarily within California, though the species is noted as having a global presence.