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Taxon: Juncus occidentalis Wiegand

Genus: Juncus
Family: Juncaceae
Nomen number: 456919
Place of publication: Bull. Torrey Bot. Club 27:521. 1900
Link to protologue:
Comment: originally based on J. tenuis var. occidentalis Coville, an illegitimate, superfluous name for J. tenuis var. congestus Engelm. (Shenzhen ICN Art. 52), so there is no parenthetical authorship (Shenzhen ICN Art. 58)
Name Verified on: 22-Aug-2008 by ARS Systematic Botanists.
Accessions: 5 (5 active, 3 available) in National Plant Germplasm System (Map)

Common names:

  • western rush  (Source: F NAmer) - English

Distributional Range:


    Northern America
    • NORTHWESTERN U.S.A.: United States [Idaho, Oregon (w.), Washington (w.)]
    • SOUTHWESTERN U.S.A.: United States [Arizona, California]


  1. FNA Editorial Committee. 1993-. Flora of North America. Note: lists as Juncus occidentalis (Coville) Wiegand
  2. Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. Species Plantarum: Flora of the World. 8:36.

Check other web resources for Juncus occidentalis Wiegand :

  • Flora of North America: Collaborative Floristic Effort of North American Botanists
  • PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
  • BONAP North American Plant Atlas of the Biota of North America Program:
  • TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2019. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=456919. Accessed 24 August 2019.