Epilobium glaberrimum subsp. glaberrimum

Family: Onagraceae · Type: perennial · Native

Smooth willowherb is a California native perennial found in the Klamath Ranges, northern Coast Ranges, Cascade Ranges, Sierra Nevada, Transverse Ranges, Peninsular Ranges, Warner Mountains, and northern White and Inyo Mountains in well-drained gravelly soils, streambanks, and roadsides at elevations of 150 to 3,000 meters. Flowering from June to September, this plant produces rose-purple to pink or white flowers 5 to 10 millimeters long. Growing with branched stems 20 to 85 centimeters tall, it develops a distinctive upright habit. Its leaves are narrowly lanceolate, measuring 20 to 70 millimeters long, arranged along the stem. The elongated fruit capsules reach 45 to 75 millimeters in length, extending well beyond the delicate flower clusters.

Habitat: Well-drained, gravelly soils, streambanks, roadsides

Bloom period: Jun-Sep

Elevation: 150-3000 m

Bioregions: KR, NCoRH, CaRH, SNH, TR, PR, Wrn, n W&ampI

California counties: Riverside, Los Angeles, San Bernardino, Sierra, Lake, Nevada, Tulare, Tuolumne, Inyo, Plumas, Siskiyou, Trinity, Fresno, Calaveras, Kern, Shasta, Mono, Humboldt, Butte, El Dorado, Placer, Madera, Tehama, Mariposa, Amador, Alpine, Modoc, Lassen, Del Norte, Ventura, Glenn, San Diego, Mendocino

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