Trifolium eriocephalum

Trifolium eriocephalum is a species of clover known by the common name woollyhead clover or hairy head clover.

Distribution
The plant is native to the north-western United States, and to California, Nevada, and Utah.

It is a common plant of several types of habitat, including Coast redwood forest, coastal prairie, mixed evergreen forest, and yellow pine forest.

Description
Trifolium eriocephalum is a hairy perennial herb producing an upright, unbranched stem. The leaves are made up of oval leaflets up to 4 centimeters long.

The inflorescence is a head of flowers up to 3 centimeters long with flowers spreading and soon drooping. The flower has a densely hairy, tubular calyx of sepals with long, narrow linear lobes that may bend outward. The white or yellowish corolla may be up to 1.4 centimeters long.

Subspecies

 * Trifolium eriocephalum ssp. cusickii — Cusick's clover, Great Basin region.
 * Trifolium eriocephalum ssp. eriocephalum