Hosackia yollabolliensis

Yolla bolly mountains bird's-foot trefoil, Yolla Bolly Mountains Bird's-Foot Trefoil

Family: Fabaceae · Type: perennial · Native

Conservation status: CNPS 1B.2

Yolla bolly mountains bird's-foot trefoil is a rare (CNPS 1B.2) California native perennial found in northern Coast Ranges in the Yolla Bolly Mountains, Trinity, and Humboldt counties, inhabiting open, dry slopes and fir forests at elevations of 1,700 to 2,100 meters. Flowering from June to August, this plant produces white to pale yellow flowers with fringed banner margins in small clusters of one to three blossoms. Growing with decumbent stems clustered and low to the ground, reaching 5 to 15 centimeters tall, it forms compact ground-hugging clusters. Its leaves are pinnate with three to five oblanceolate to obovate leaflets, each 3 to 10 millimeters long, arranged delicately along slender stems. The fruit develops as a narrow, glabrous pod 1.5 to 2.5 centimeters long, containing a small number of seeds.

Habitat: Open, dry slopes, fir forest

Bloom period: Jun-Aug

Elevation: 1700-2100 m

Bioregions: n NCoRH (Yolla Bolly Mtns, South Fork Mtn, Trinity, Humboldt cos.).

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