Trifolium microcephalum is a species of clover known by the common names smallhead clover and small-headed clover.
Description Trifolium microcephalum is an annual herb taking a decumbent or erect form. It is coated in hairs. The leaves are made up of oval leaflets with notched tips, each measuring up to long, and bristle-tipped stipules.
The inflorescence is a head of flowers borne in a bowl-like involucre of wide, hairy bracts. The head is not more than 1 cm wide. Each flower has a calyx of sepals with lobes narrowing into hairy bristles. The flower corolla is pinkish or purplish and measures in length.
Distribution and habitat It is native to western North America from southern Alaska and British Columbia to California, Montana, Arizona, and Baja California, where it occurs in many types of habitat, becoming common to abundant in some regions. It can grow in disturbed habitat and become a casual roadside weed.
References
External links Calflora Database: Trifolium microcephalum (Hairy clover, Maiden clover, Small headed clover) Jepson Manual eFlora (TJM2) treatment of Trifolium microcephalum Burke Museum, University of Washington UC CalPhotos gallery: Trifolium microcephalum