Leptosiphon grandiflorus

Large-flowered leptosiphon

Family: Polemoniaceae · Type: annual · Native

Conservation status: CNPS 4.2

Large-flowered leptosiphon is a California native annual found in coastal and central California regions, including the North Coast, Central Coast, San Francisco Bay Area, and northern South Coast Ranges in open, grassy flats with sandy soil at elevations below 1,200 meters. Flowering from April to July, this delicate plant produces white or pink flowers 15 to 30 millimeters long with a distinctive yellow throat, creating a striking visual display. Growing with branched stems that are hairy and ascending to 30 centimeters tall, it spreads across grassy landscapes with a delicate, open structure. Its leaves are finely divided, with linear lobes 10 to 30 millimeters long, ascending along the stem and varying from hairy to smooth. The flower's funnel-shaped corolla features a hairy inner ring and delicate white or pink petals that contrast beautifully with its yellow throat.

Habitat: Open, grassy flats, generally sandy soil

Bloom period: Apr-Jul

Elevation: < 1200 m

Bioregions: NCo, CCo, SnFrB, n SCoR.

California counties: Monterey, Marin, Santa Barbara, Los Angeles, Santa Clara, Madera, Mendocino, Merced, San Mateo, San Luis Obispo, San Francisco, Alameda, Santa Cruz, Contra Costa, Glenn, San Diego, Stanislaus

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