Perideridia bolanderi

Bolander's yampah

Family: Apiaceae · Type: perennial · Native

Bolander's yampah is a California native perennial herb found in open grasslands and meadows at elevations of 300 to 1,500 meters. Flowering from June to August, this plant produces small white flowers in delicate compound umbels with 9 to 23 rays. Growing 15 to 90 centimeters tall with distinctive tuberous roots clustered in groups of two or three, it develops finely dissected basal leaves with thread-like segments. Its leaves are characteristically complex, with basal blades 10 to 20 centimeters long that are ovate and intricately divided into thread-like or oblong segments up to 6 centimeters long. The fruit is small, approximately 4 to 6 millimeters long with slender thread-like ribs.

California counties: Lassen, Mariposa, Tuolumne, Nevada, Placer, Plumas, Fresno, Shasta, Alpine, Mono, Sierra, Trinity, Madera, Tulare, Modoc, Butte, Siskiyou, Inyo

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