Trifolium leibergii

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Trifolium leibergii

Imperiled (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Trifolieae
Genus: Trifolium
Species: T. leibergii
Binomial name
Trifolium leibergii
A.Nelson & J.F.Macbr.

Trifolium leibergii is a species of flowering plant in the legume family known by the common name Leiberg's clover.[1] It is native to Oregon and Nevada in the United States.[2][3]

This clover is a perennial herb growing 10 to 15 centimeters tall. The plant has a coating of gray hairs. The leaves are each made up of three spine-tipped leaflets. The inflorescence is a head of several flowers which are cream-colored with tinges of pink or purple. Blooming occurs in June and July.[3]

This plant grows in soils of decomposing tuff, a volcanic ash substrate. The plants grow in cracks in the soil, so that they can appear to be growing in a straight line. There is little other vegetation in the habitat, but associated plants may include Artemisia arbuscula.[2]

This plant may have a disjunct distribution, but it is possible more populations occur in the 300 kilometers between the two population centers in southern Oregon and northern Nevada.[3]


  1. ^ "Trifolium leibergii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 December 2015. 
  2. ^ a b Trifolium leibergii. Center for Plant Conservation.
  3. ^ a b c Trifolium leibergii. NatureServe.