Descurainia pinnata subsp. glabra

Family: Brassicaceae · Type: annual · Native

Tansy mustard is a California native annual found in sandy areas, washes, scrub, oak and pine woodlands, and floodplains across California at elevations of 200 to 2,400 meters. Flowering from February to June, this plant produces small pale yellow to white flowers less than 2 millimeters long with delicate, spreading pedicels. Growing with slender, upright stems 10 to 40 centimeters tall, it has a non-glandular and uncanescent growth habit. Its finely divided pinnate leaves are delicate, with multiple small leaflets creating a lacy, feathery appearance. The plant produces small, narrow fruits with pale pink-tipped sepals, adding subtle visual interest to its overall structure.

Habitat: Sandy areas, washes, scrub, oak/pine woodland, floodplains, limestone outcrops

Bloom period: Feb-Jun

Elevation: 200-2400 m

Bioregions: CA

California counties: Kern, San Bernardino, Inyo, Los Angeles, Mono, Riverside, San Diego, Tulare, Ventura, Imperial, San Luis Obispo, Monterey, Siskiyou, Fresno, Plumas, Santa Barbara, Lassen, Modoc, Nevada, San Benito, El Dorado

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