Eremothera boothii subsp. decorticans

Shredding evening-primrose, Shredding Evening-Primrose

Family: Onagraceae · Type: annual · Native

Shredding evening-primrose is a California native annual found in southern Sierra Nevada foothills, Tehachapi Mountains, southern San Joaquin Valley, San Francisco Bay Area, south Coast Ranges, and western Transverse Ranges in open, generally steep and rocky habitats, especially on shale slopes at elevations below 1,850 meters. Flowering from March to June, this plant produces yellow flowers in delicate clusters. Growing with sturdy stems 12 to 65 centimeters tall, it develops a well-defined basal rosette with mostly glabrous vegetation. Its leaves are generally 20 to 80 millimeters long, predominantly lanceolate or narrowly ovate on the lower stem, ranging from entire to minutely toothed. The fruit is slightly curved and approximately 1.7 to 2.3 millimeters wide.

Habitat: Open, generally steep and rocky, especially shale slopes

Bloom period: Mar-Jun

Elevation: < 1850 m

Bioregions: s SNF, Teh, s SnJV, SnFrB, SCoRI, WTR.

California counties: Ventura, Kern, Riverside, Los Angeles, Alameda, San Bernardino, San Joaquin, Stanislaus, Tulare, Fresno, Monterey, San Benito, San Luis Obispo, Santa Barbara, Merced, San Diego, Kings, Inyo, Imperial

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