Eriogonum congdonii

Congdon's buckwheat

Family: Polygonaceae · Type: shrub · Native

Conservation status: CNPS 4.3

Congdon's buckwheat is a rare California native shrub ranked 4.3 by CNPS, found in the Klamath Ranges in serpentine habitats at elevations of 1,500 to 2,300 meters. Flowering from July to September, this plant produces yellow flowers in compact clusters with distinctive involucres 5 to 6 millimeters long. Growing as a low subshrub 15 to 50 centimeters tall with a spread of 10 to 30 centimeters, it has generally glabrous stems and a compact growth form. Its basal leaves are small, 5 to 20 millimeters long and 3 to 6 millimeters wide, with a dense white tomentose underside and smooth upper surface. The fruit is 4 to 5.5 millimeters long, with a notably hairy beak contrasting with its otherwise smooth surface.

Habitat: Serpentine

Bloom period: Jul-Sep

Elevation: (1000)1500-2300 m

Bioregions: KR.

California counties: Trinity, Shasta, Siskiyou

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