Streptanthus glandulosus subsp. secundus

One-sided jewelflower

Family: Brassicaceae · Type: annual · Native

One-sided jewelflower is a California native annual found in southern North Coast Ranges, southwestern North Coast Ranges, and northwestern San Francisco Bay area on rocky, open slopes and forest openings at elevations of 100 to 1,200 meters. Flowering from April to June, this plant produces green-white flowers with lavender to purple bases and purple-veined petals 12 to 16 millimeters long. Growing with stems 15 to 93 centimeters tall, densely stiff-hairy near the base and sparsely hairy toward the top, it develops a distinctive one-sided flowering axis. Its cauline leaves are densely to moderately hairy, with upper leaves showing dentate edges. The fruit is uniquely recurved, spreading to reflexed, and appears glabrous.

Habitat: Rocky, open slopes, forest openings

Bloom period: Apr-Jun

Elevation: 100-1200 m

Bioregions: s NCoRO, sw NCoRI, nw SnFrB.

California counties: Sonoma, Marin

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