Boechera subpinnatifida

Klamath rockcress

Family: Brassicaceae · Type: perennial · Native

Klamath rockcress is a California native perennial found in the Klamath Ranges, northern Coast Ranges, and North Coast Ranges on igneous and metamorphic rock outcrops at elevations of 700 to 2,400 meters. Flowering from March to May, this plant produces purple to lavender flowers 9 to 14 millimeters long with petals 1.5 to 3 millimeters wide. Growing with slender stems 10 to 50 centimeters tall, it develops a woody caudex with crowded, persistent leaf bases and stems covered in short, branched hairs. Its basal leaves are 1 to 5 millimeters wide, often dentate or pinnately lobed, with short-stalked hairs covering the surface. The fruit is a pendulous silique 3.5 to 8 centimeters long, densely hairy throughout, containing 24 to 42 seeds.

Habitat: Igneous, metamorphic rock outcrops, gravelly soil

Bloom period: Mar-May

Elevation: 700-2400 m

Bioregions: KR, n NCoRO, NCoRH

California counties: Trinity, Mendocino, Siskiyou, Lassen, Plumas, Glenn, Modoc, Nevada, Tehama, Lake, Humboldt, Del Norte, Shasta

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