Epilobium ciliatum subsp. watsonii

Family: Onagraceae · Type: perennial · Native

Watson's willowherb is a California native perennial found in the northern and central Coast Ranges in moist coastal bluffs, streamsides, and disturbed sites at elevations below 200 meters. Flowering from May to October, this plant produces rose-purple to pink flowers 5 to 14 millimeters long in dense, flat-topped clusters. Growing robustly with well-developed rosettes and stems 30 to 150 centimeters tall, it spreads vigorously in wet environments. Its leaves are lanceolate to slightly ovate, with distal leaves that are not significantly reduced in size. The plant forms dense, leafy inflorescences that create a distinctive presence in coastal and streamside habitats.

Habitat: Moist coastal bluffs, streamsides, +- disturbed sites

Bloom period: May-Oct

Elevation: < 200 m

Bioregions: NCo, CCo

California counties: Marin, San Francisco, San Mateo, Humboldt, Sonoma, San Luis Obispo, Santa Cruz, Del Norte, Mendocino, Monterey, Orange, Kern, Alameda, San Bernardino, Santa Barbara, Amador, Los Angeles, Nevada

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