Calystegia purpurata subsp. saxicola

Coastal bluff morning-glory, Coastal Bluff Morning-Glory

Family: Convolvulaceae · Type: perennial · Native

Conservation status: CNPS 1B.2

Coastal bluff morning-glory is a rare (CNPS 1B.2) California native perennial found in central and northern California coastal regions including Brooks Island in Contra Costa County and San Francisco Bay Area, inhabiting rocky coastal scrub at elevations below 100 meters. Flowering from May to June, this plant produces lavender to purple flowers with distinctive trumpet-shaped blooms. Growing with trailing to weakly climbing stems generally less than one meter long, it spreads across rocky coastal terrain with a delicate, sprawling habit. Its leaves are uniquely shaped with ovate-triangular to kidney-like forms, featuring rounded lobes, slightly wavy margins, and tips that are generally rounded or softly notched. The plant's sinuous stems and gently curved leaves make it a characteristic element of California's coastal bluff ecosystems.

Habitat: Rocky coastal scrub

Bloom period: May-Jun

Elevation: < 100 m

Bioregions: c&amps NCo, n CCo (Brooks Island, Contra Costa Co.), n SnFrB.

California counties: Mendocino, Sonoma, Marin

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