Arabis eschscholtziana

Eschscholtz's hairy rockcress

Family: Brassicaceae · Type: perennial · Native

Eschscholtz's hairy rockcress is a California native perennial found in the Klamath Ranges, northern coastal California, Cascade Range, Sierra Nevada, San Bernardino Mountains, and White and Inyo Mountains in gravelly soils, open woodlands, and rock crevices at elevations up to 2,800 meters. Flowering from May to July, this plant produces white to pink flowers in delicate clusters with petals 6.5 to 9 millimeters long. Growing with slender stems 20 to 70 centimeters tall that branch toward the top, it develops a sparse caudex with simple to forked hairs. Its basal leaves are narrowly oblanceolate to spoon-shaped, 2 to 13 centimeters long, with entire or slightly toothed edges that may be hairy or smooth. The fruit develops as an erect to ascending pod 3.5 to 6.5 centimeters long with small seeds nestled within.

Habitat: Gravelly soils, swales, open woodland, meadows, rock crevices, ledges

Bloom period: May-Jul

Elevation: < 2800 m

Bioregions: KR, NCoRO, CaR, SN, SnBr, W&ampI

California counties: San Bernardino, Siskiyou, Los Angeles, Marin, Del Norte, Tehama, Plumas, Shasta, Mono, Trinity, Modoc, Colusa, Mariposa, Inyo, Butte, Tuolumne, Placer

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