Eriogonum nudum var. regirivum

Kings river buckwheat, Kings River Buckwheat

Family: Polygonaceae · Type: perennial · Native

Conservation status: CNPS 1B.2

Kings river buckwheat is a rare (CNPS 1B.2) California native perennial found in southern Sierra Nevada Foothills near Kings River in Fresno County, growing in gravel habitats at elevations of 200 to 600 meters. Flowering from August to November, this plant produces white flowers in compact clusters with hairy perianths. Growing 5 to 10 decimeters tall with tomentose stems measuring 1 to 3 decimeters long, it develops an expansive branching structure up to 100 centimeters wide. Its leaves are primarily basal, with fuzzy blades 2 to 3.5 centimeters long and 1.5 to 2.5 centimeters wide, covered in soft tomentose hair. The plant's involucres are small, measuring 3 to 4 millimeters and also covered in tomentose hair.

Habitat: Gravel

Bloom period: Aug-Nov

Elevation: 200-600 m

Bioregions: s SNF (Kings River near Pine Flat Reservoir, Fresno Co.).

California counties: Fresno, Mariposa

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