Common Name

Scientific Name

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Photo by Daniela Roth
Photo Courtesy of United States Fish and Wildlife Service

Frisco buckwheat, Eriogonum soredium, a Federal candidate for listing, is known from the San Francisco Mountains in north-central Beaver County, Utah. A member of the buckwheat family, this plant is a densely matted, mound forming perennial. It has a many-branched woody base, with persistent leaf bases, that give rise to flowers with white petals. It blooms June to September. Frisco buckwheat is restricted to gravelly to rocky substrates derived from Ordovician limestone. The species can be found in mixed saltbush and sagebrush communities, and pinyon-juniper woodlands, at elevations ranging from to 1890-2230 meters. It occurs at locations that are potentially subject to threats from mining and nonnative invasive plant species.


  • Reveal, J. L. 2005. Eriogonum Michaux. Pages 221-430 in Flora of North America Editorial Committee (Editors), Flora of North America, North of Mexico, Volume 5, Magnoliophyta: Caryophyllidae, part 2: Polygonaceae. Oxford University Press, New York, NY, USA. 656 pp. + xxii. [Flowering Jun-Sep. Gravelly to rocky limestone slopes, mixed saltbush and sagebrush communities, pinyon-juniper woodlands; of conservation concern; 2000-2300 m; Utah.]

  • U.S. Fish and Wildlife Service (USFWS). 2011. Endangered and threatened wildlife and plants; 12-month finding on a petition to list Astragalus hamiltonii, Penstemon flowersii, Eriogonum soredium, Lepidium ostleri, and Trifolium friscanum as Endangered or Threatened. Notice of a 12–month petition finding. Dated February 23, 2011. Federal Register. 76(36): 10166-10203.

  • Utah Native Plant Society. 2003-2011 [cited 24 February 2011]. Utah rare plant guide. [Internet]. A. J. Frates editor/coordinator. Salt Lake City, UT: Utah Native Plant Society. Available from: http://www[.]utahrareplants[.]org.