Taxon: Elymus repens (L.) Gould subsp. repens

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

AK(as Elymus repens)*°, AL(as Agropyron repens)°, AZ(as Elymus repens)°, AZ(as Elytrigia repens)*, CA(as Agropyron repens)°, CA(as Elytrigia repens)*°, CO(as Agropyron repens)°, CO(as Elytrigia repens)*°, CT(as Agropyron repens)°, DC(as Elytrigia repens)°, DE(as Agropyron repens)°, FL(as Agropyron repens)°, GA(as Elytrigia repens)°, HI(as Elytrigia repens)*°, IA(as Agropyron repens)*°, ID(as Agropyron repens)°, ID(as Elytrigia repens)°, IL(as Agropyron repens)°, IN(as Agropyron repens)°, KS(as Agropyron repens)*°, KY(as Elytrigia repens)°, LA(as Agropyron repens)°, MA(as Agropyron repens)°, MD(as Elytrigia repens)°, ME(as Agropyron repens)°, MI(as Agropyron repens)*°, MI(as Elytrigia repens)*°, MN(as Agropyron repens)°, MO(as Agropyron repens)°, MS(as Elytrigia repens)°, MT(as Agropyron repens)°, NC(as Elytrigia repens)°, ND(as Agropyron repens)°, NE(as Elytrigia repens)°, NH(as Agropyron repens)°, NJ(as Agropyron repens)°, NM(as Agropyron repens)°, NV(as Agropyron repens)°, NY(as Agropyron repens)°, OH(as Agropyron repens)°, OH(as Elytrigia repens)°, OK(as Agropyron repens)*°, OR(as Agropyron repens)*, OR(as Elytrigia repens)°, PA(as Elytrigia repens)°, RI(as Agropyron repens)*°, SC(as Agropyron repens)°, SD(as Agropyron repens)°, TN(as Agropyron repens)°, TX(as Elytrigia repens)°, UT(as Agropyron repens)*°, VA(as Elytrigia repens)°, VT(as Agropyron repens)°, WA(as Elytrigia repens)°, WI(as Agropyron repens)°, WV(as Agropyron repens)°, WY(as Elytrigia repens)°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Link to species profile at

See other conspecific taxa:

• Elymus repens (5 accessions)
• Elymus repens subsp. elongatiformis (56 accessions)

Common names:

• couch grass   (Source: World Econ Pl ) – English
  
• coutch   (Source: Dict Rehm ) – English
  
• dog grass   (Source: Ency CNatIn ) – English
  
• quack grass   (Source: World Econ Pl ) – English
  
• quick grass   (Source: Weed CIBA ) – English
  
• scutch   (Source: Dict Rehm ) – English
  
• twitch grass   (Source: Weed CIBA ) – English
  
• chiendent   (Source: F NAmer ) – French
  
• chiendent rampant   (Source: Dict Rehm [as Agropyron repens]) – French
  
• petit chiendent   (Source: Dict Rehm [as Agropyron repens]) – French
  
• Ackerquecke   (Source: Dict Rehm [as Agropyron repens]) – German
  
• Quecke   (Source: Dict Rehm [as Agropyron repens]) – German
  
• grama canina   (Source: Dict Rehm [as Agropyron repens]) – Spanish
  

Economic importance:

• Food additives: flavoring   (fide Ency CNatIn, as Elytrigia repens)
  
• Animal food: fodder   (fide F Iraq, as Agropyron repens)
  
• Animal food: forage   (fide F Iraq, as Agropyron repens)
  
• Gene sources: tertiary genetic relative of wheat   (fide Wild Crop Rel Cer 2:78. 2011)
  
• Medicines: folklore   (fide Ency CNatIn, as Elytrigia repens; CRC MedHerbs ed2, as Elytrigia repens; Herbs Commerce ed2, as Elytrigia repens)
  
• Weed: potential seed contaminant   (fide Weed CIBA; Invasive Pl Spec)
  

Distributional range:

• AFRICA
  Northern Africa: Algeria; Morocco; Tunisia
• ASIA-TEMPERATE
  Western Asia: Afghanistan; Cyprus; Iran; Iraq; Lebanon; Syria; Turkey
  Caucasus: Armenia; Azerbaijan; Georgia; Russian Federation - Ciscaucasia, Dagestan
  Siberia: Russian Federation - Altay, Buryatia, Chita, Gorno-Altay, Irkutsk, Kemerovo, Krasnoyarsk, Kurgan, Novosibirsk, Omsk, Tuva, Tyumen, Yakutia-Sakha
  Middle Asia: Kazakhstan; Kyrgyzstan; Tajikistan; Turkmenistan; Uzbekistan
  Mongolia: Mongolia
  Russian Far East: Russian Federation - Amur, Kamchatka, Khabarovsk, Kurile Islands, Magadan [s.], Primorye, Sakhalin
  China: China - Gansu, Hebei, Heilongjiang, Nei Monggol, Qinghai, Sichuan, Xinjiang, Xizang, Yunnan
  Eastern Asia: Korea
• ASIA-TROPICAL
  Indian Subcontinent: India [n.]; Pakistan
• EUROPE
  Northern Europe: Denmark; Finland; Iceland; Ireland; Norway; Sweden; United Kingdom
  Middle Europe: Austria; Belgium; Czech Republic; Germany; Hungary; Netherlands; Poland; Switzerland
  East Europe: Belarus; Estonia; Latvia; Lithuania; Moldova; Russian Federation - European part; Ukraine [incl. Krym]
  Southeastern Europe: Albania; Bulgaria; Croatia; Greece; Italy [incl. Sardinia, Sicily]; Romania; Serbia; Slovenia
  Southwestern Europe: France [incl. Corsica]; Spain [incl. Baleares]

• AFRICA
  Macaronesia: Spain - Canary Islands
  Southern Africa: South Africa
• ASIA-TROPICAL
  Indian Subcontinent: Bhutan
• AUSTRALASIA
  Australia: Australia
  New Zealand: New Zealand
• NORTHERN AMERICA
  North America
• SOUTHERN AMERICA
  Southern South America: Chile

• exact native range obscure

References:

• Plants of southern Africa: an online checklist. [= Elytrigia repens].
• CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988)
• Davis, P. H., ed. 1965–1988. Flora of Turkey and the east Aegean islands.
• Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). [= Elytrigia repens subsp. repens].
• FNA Editorial Committee. 1993–. Flora of North America.
• Grierson, A. J. C. & D. J. Long. 1984–. Flora of Bhutan including a record of plants from Sikkim. [= Elymus repens].
• Leung, A. Y. & S. Foster. 1996. Encyclopedia of common natural ingredients used in food, drugs, and cosmetics, ed. 2.
• Randall, R. P. 2007. The introduced flora of Australia and its weed status.
• Rehm, S. 1994. Multilingual dictionary of agronomic plants. [= Agropyron repens].
• Tutin, T. G. et al., eds. 1964–1980. Flora europaea.
• USDA National Agricultural Library. National Invasive Species Information Center (on-line resource).
• Ugarte, E. et al. 2011. Vascular alien flora, Chile. Check List 7:365–380. [= Elymus repens].
• Villaseñor, J. L. & F. J. Espinoza-Garcia. 2004. The alien flowering plants of Mexico. Diversity & Distrib. 10:113–123. [= Agropyron repens].
• Wang, R. R.-C. 2011. Chapter 2. Agropyron and Psathyrostachys. In: Kole, C., ed., Wild crop relatives: genomic and breeding resources, cereals. 77–108. [this review mentioned the diversity of genome constitution in Triticeae, all types found in Elymus able to cross with wheat].
• Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds.
• Wu Zheng-yi & P. H. Raven et al., eds. 1994–. Flora of China (English edition). [= Elytrigia repens subsp. repens].

Synonyms:

• (=) Agropyron firmum J. Presl
  
• (≡) Agropyron repens (L.) P. Beauv.
  (previously associated with 53 accessions)
• (≡) Elytrigia repens (L.) Desv. ex Nevski
  (previously associated with 238 accessions)
• (=) Triticum firmum (J. Presl) Link
  
• (≡) Triticum repens L. (basionym)
  (previously associated with 1 accession)

Check other web resources for Elymus repens (L.) Gould subsp. repens:

• Flora Europaea: Database of European Plants (ESFEDS)
• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• Flora del Conosur: Catálogo de las Plantas Vasculares del Conosur
• Flora of China: Online version from Harvard University
• SIBIS: South African National Biodiversity Institute's (SANBI) Integrated Biodiversity System
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• CNWG: Catalogue of New World Grasses Searchable Database
• Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops

Images:

• GRIN Images of germplasm accessions.
• Florets: U.S. National Seed Herbarium image
• Florets: Seed ID Workshop image, from Department of Horticulture and Crop Science, Ohio State University

More:

• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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