Calystegia collina subsp. tridactylosa

Three-fingered morning-glory, Three-Fingered Morning-Glory

Family: Convolvulaceae · Type: perennial · Native

Conservation status: CNPS 1B.2

Three-fingered morning-glory is a rare (CNPS 1B.2) California native perennial found in northern coastal ranges and inner north coast ranges, specifically in Mendocino and Lake counties, in open grassy or rocky serpentine places and oak/pine woodlands at elevations below 600 meters. Flowering from April to June, this plant produces white flowers with delicate, slightly wavy-edged petals about 27 to 33 millimeters long. Growing with stems generally 15 to 30 centimeters tall, it develops distinctive three-lobed leaves with gently undulating margins. Its leaves feature distinct lobes that create an intricate, almost sculptural appearance against the landscape. The plant's outer sepals are notably tomentose, giving the flower a soft, textured appearance.

Habitat: Open grassy or rocky places or in open oak/pine woodland, often serpentine

Bloom period: Apr-Jun

Elevation: < 600 m

Bioregions: NCoRO, NCoRI (Mendocino, Lake cos.).

California counties: Mendocino, Lake

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