Trifolium leibergii

{{Short description|Species of legume}}

{{speciesbox

| status = G2

| status_system = TNC

| genus = Trifolium

| species = leibergii

| authority = 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.{{PLANTS|id=TRLE|taxon=Trifolium leibergii|accessdate=15 December 2015}} It is native to Oregon and Nevada in the United States.[http://www.centerforplantconservation.org/Collection/CPC_ViewProfile.asp?CPCNum=4325 Trifolium leibergii.] {{Webarchive|url=https://web.archive.org/web/20111026070412/http://www.centerforplantconservation.org/Collection/CPC_ViewProfile.asp?CPCNum=4325 |date=2011-10-26 }} Center for Plant Conservation.[https://archive.today/20130415103058/http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Trifolium+leibergii Trifolium leibergii.] NatureServe.

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.

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.

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.