Perideridia bolanderi subsp. involucrata

Family: Apiaceae · Type: perennial · Native

Bolander's yampah is a California native perennial found in northern and central Sierra Nevada foothills in blue oak woodland at elevations of 90 to 1,000 meters. Flowering from June to August, this plant produces delicate white flowers in compact umbels with 18 to 25 individual blossoms. Growing 40 to 90 centimeters tall with a glaucous (bluish-gray) appearance, it develops slender, upright stems. Its leaves feature narrow, linear segments less than one millimeter wide, typically 0.6 to 6 centimeters long, with terminal segments matching the size and form of lateral segments. The umbels are distinctive, with lance-linear bracts that have wide, persistent scarious (papery) margins.

Habitat: Blue-oak woodland, in summer-dry clay soil

Bloom period: Jun-Aug

Elevation: 90-1000 m

Bioregions: n&ampc SNF.

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