Trifolium microcephalum
| Trifolium microcephalum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Trifolium |
| Species: | T. microcephalum
|
| Binomial name | |
| Trifolium microcephalum | |
Trifolium microcephalum is a species of clover known by the common names smallhead clover[1] and small-headed clover.[2]
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.
Description
[edit]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 2 centimeters 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 a centimeter wide. Each flower has a calyx of sepals with lobes narrowing into hairy bristles. The flower corolla is pinkish or purplish and measures 4 to 7 millimeters in length.
References
[edit]- ^ NRCS. "Trifolium microcephalum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 15 December 2015.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
External links
[edit]- 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
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- NatureServe secure species
- Trifolium
- Flora of British Columbia
- Flora of California
- Flora of the Northwestern United States
- Flora of Arizona
- Flora of Nevada
- Flora of the Sierra Nevada (United States)
- Natural history of the California chaparral and woodlands
- Natural history of the California Coast Ranges
- Natural history of the Peninsular Ranges
- Natural history of the Transverse Ranges
- Trifolieae stubs