Streptanthus polygaloides subsp. undulatus

Pine flat jewelflower

Family: Brassicaceae · Type: annual · Native

Pine flat jewelflower is a California native annual found in central coastal California in serpentine grasslands and blue oak woodlands at elevations of 200 to 725 meters. Flowering in June, this plant produces pale yellow to golden yellow flowers with distinctively wavy margins and unique petal shapes. Growing with delicate stems typical of annual wildflowers, it emerges in scattered clusters among serpentine rock outcrops. Its leaves are characteristic of the jewelflower genus, with subtle variations in shape and arrangement that help it blend into its specialized habitat. The flower's pale yellow sepals have distinctive wavy margins and short bristly surfaces, creating an intricate and delicate botanical display.

Habitat: Serpentine outcrops and roadcuts, in grassland and blue oak woodland

Bloom period: Jun

Elevation: 200-725 m

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.