Oxalis trilliifolia

Three leaf woodsorrel

Family: Oxalidaceae · Type: perennial · Native

Three leaf woodsorrel is a California native perennial found in northern coastal, Klamath Ranges, and northern coastal ranges in dense conifer forest at elevations below 1,900 meters. Flowering from May to August, this plant produces delicate white to pale pink flowers in small umbel-like clusters with 3 to 9 blossoms. Growing from a creeping, fleshy, scaly rhizome with essentially no visible stem, it forms distinctive clusters of leaves at the rhizome tips. Its leaves have three leaflets less than 4 centimeters long, carried on hairy petioles up to 30 centimeters in length. The plant produces linear fruits less than 3 centimeters long, complementing its understated woodland presence.

Habitat: Dense conifer forest

Bloom period: May-Aug

Elevation: < 1900 m

Bioregions: NCo, KR, NCoRO

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