Trifolium siskiyouense

Trifolium siskiyouense, the Siskiyou clover, is a clover species endemic to the Klamath Mountains in the western United States.

Distribution
The plant species is native to northwestern California and southwestern Oregon, in the Klamath Mountains. It is reported from only 5 counties: Shasta and Siskiyou Counties in California; and Josephine, Douglas and Jackson Counties in Oregon.

The type specimen was collected in 1904 near Grants Pass in Josephine County, Oregon. Part of its range is protected within the Klamath National Forest.

The plant grows in wet mountain meadows at elevations of 800 - 1400 m.

Description
Trifolium siskiyouenseis a glabrous, perennial herb with thickened roots but no rhizomes. Leaves are trifoliate with lanceolate stipules; leaflets are elliptic to oblanceolate, up to 3 cm long. Flowers are white to cream-colored.