Trifolium striatum

Knotted clover

Family: Fabaceae · Type: annual · Not Native

Knotted clover is a naturalized annual found in northern California regions including the North Coast Ranges Interior, Cascade Range Foothills, northern Sierra Nevada Foothills, Central Coast, and southern Coast Ranges in disturbed areas at elevations from sea level to 685 meters. Flowering from May to June, this plant produces pink flowers in dense, short-cylindric heads about 0.5 to 1.5 centimeters long. Growing with decumbent, ascending, or erect hairy stems, it has a delicate, spreading habit. Its leaves have three leaflets 6 to 16 millimeters long, ranging from obovate-oblong to oblanceolate, with ovate stipules that have triangular-linear tips. The flower's banner is distinctively notched at the tip, with calyx lobes sparsely covered in soft hairs.

Habitat: Disturbed areas

Bloom period: May-Jun

Elevation: 0-685 m

Bioregions: NCoRI, CaRF, n SNF, CCo, SCoRO

California counties: Shasta, Nevada, Marin, Sonoma, Napa, Monterey, Yuba, Solano, Mendocino, San Luis Obispo, Santa Cruz, Yolo, Placer

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