Fewer than 700 remain in California. The fence works ... Yet only in the small scattered pockets of serpentine soils will you find Streptanthus breweri, surrounded by rocks glowing in the sun ...

A natural serpentine soil outcrop--the area devoid of vegetation ... Image taken at the Hopland Research and Extension Center, CA ...

They will do this by hyperaccumulating plants from the nickel-enriched ultramafic marginal soils from the Serpentine Barrens. Existing in two large areas on each coast of the United States, the west ...

HABITAT: Bay checkerspot habitat exists on shallow, serpentine-derived soils, which support the plants on which the caterpillars feed ... FEEDING: Adults feed on the nectar of a variety of plants ...