Perideridia kelloggii

Kellogg's yampah

Family: Apiaceae · Type: perennial · Native

Kellogg's yampah is a California native perennial found in northwestern California, the Cascade Range, central Sierra Nevada, central Coast Ranges, and San Francisco Bay Area in open grasslands and serpentine outcrops at elevations to 1,800 meters. Flowering from July to August, this plant produces white flowers in delicate umbels with 9 to 20 rays spreading in an ascending pattern. Growing 70 to 150 centimeters tall with fibrous roots clustered in groups of 5 to 15, it has distinctive finely divided leaves with multiple linear leaflets. Its basal leaves are broadly triangular, 1 to 2 times ternate-pinnate, with narrow leaflets 3 to 12 centimeters long and 2 to 8 millimeters wide. The fruit is a small elliptic-oblong structure 4 to 5 millimeters long with thread-like ribs.

Habitat: Open grassland, serpentine outcrops

Bloom period: Jul-Aug

Elevation: < 1800 m

Bioregions: NW, CaRF, n&ampc SNF, CCo, SnFrB.

California counties: Mendocino, Lake, Sonoma, San Mateo, Alameda, Marin, San Benito, Monterey, Humboldt, Shasta, Trinity, Butte, Tuolumne, San Francisco, Santa Cruz, Modoc, Sierra, Yuba, Colusa, Solano, Contra Costa, Tehama, Sutter, Nevada, Lassen, Napa, Santa Clara, Calaveras, Fresno, Amador, San Diego, El Dorado, Glenn, Mariposa, San Joaquin, San Luis Obispo, Yolo, Sacramento

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