Eriogonum compositum var. compositum

Arrow-leaf wild buckwheat

Family: Polygonaceae · Type: perennial · Native

Arrow-leaf wild buckwheat is a California native perennial found in northwestern California and the California Ranges on uncommon serpentine habitats at elevations of 30 to 2,500 meters. Flowering from April to July, this plant produces pale to bright yellow flowers in clustered inflorescences with densely tomentose involucres 6 to 10 millimeters wide. Growing 40 to 70 centimeters tall with glabrous stems that are somewhat inflated, it forms distinctive clusters up to 5 centimeters in diameter. Its basal leaves are large and notable, with blades 7 to 25 centimeters long and 2 to 8 centimeters wide, generally covered in dense tomentum. The fruit is 5 to 6 millimeters long, glabrous except for a hairy tip.

Habitat: Uncommon. Serpentine

Bloom period: Apr-Jul

Elevation: 30-2500 m

Bioregions: NW, CaR

California counties: Trinity, Tehama, Siskiyou, Del Norte, Lake, Glenn, Humboldt, Sonoma, Mendocino, Napa, Shasta

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