Caulanthus hallii

Hall's caulanthus

Family: Brassicaceae · Type: annual · Native

Hall's caulanthus is a California native annual found in the eastern Peninsular Ranges, southern Desert Mountains including the Little San Bernardino Mountains, and western edge of the Desert Sonoran regions in dry, open areas, chaparral, and rocky places at elevations of 150 to 1,800 meters. Flowering from April to May, this plant produces cream-colored flowers 6 to 10.5 millimeters long with erect sepals. Growing with slender, sometimes inflated stems 20 to 120 centimeters tall that are sparsely to densely stiff-hairy, it can be simple or branched toward the top. Its leaves form a basal rosette with oblanceolate or oblong blades 1.5 to 11.5 centimeters long, pinnately lobed with dentate edges, while upper stem leaves become narrower and more linear. The plant produces elongated fruits 6.5 to 12.5 centimeters long, containing 78 to 96 small oblong seeds.

Habitat: Uncommon. Dry, open areas, chaparral, scrub, rocky places

Bloom period: Apr-May

Elevation: 150-1800 m

Bioregions: e PR, s DMtns (Little San Bernardino Mtns), w edge DSon

California counties: Riverside, San Diego, San Bernardino

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