Overview
Interesting Facts
Common Names
Click on the language to view common names.
Common Names in English:
Couchgrass, Couch-Grass, Creeping Quackgrass, Creeping Wild Rye, Devils Grass Elytrigia Repens, Dog Grass, Medusa's Head, Quackgrass, Quackgrass Grass, Quackgrass Rye, Twitchgrass
Common Names in Italian:
Caprinella, Gramigna Comune
Common Names in Russian:
Pyrej Polzučij, пырей ползучий
Common Names in Swedish:
Kvickrot
Description
Genus Elymus
Plants
perennial
, usually tufted
, usually without, rarely with, rhizomes. Culms
usually erect
. Leaf sheath
of cauline leaves split almost to base
; auricles
present or absent; leaf blade flat or rolled. Spike erect to nodding
. Spikelets
1 or 2(4) per node, sessile, rarely very shortly pedicellate
, appressed
to rachis, clearly laterally compressed
, usually all similar, with 210 or more florets
; rachis tough. Glumes
opposite or side-by-side, linear-lanceolate to lanceolate-ovate, firmly membranous to leathery, 19(11) -veined, not keeled
, apex obtuse
to shortly awned
; veins ± raised. Lemma lanceolate-oblong, rounded
abaxially, 5-veined, ± pubescent
, apex obtuse or acute to awned, rarely toothed
; veins connivent at apex; awn
erect or reflexed
. Palea shorter than or equaling lemma, apex retuse
, subrounded, or acute. Caryopsis usually adherent
to lemma and palea. x = 7.
About 170 species:temperate regions of both hemispheres, mainly in Asia; 88 species (62 endemic) in China.
The genus Roegneria should be referred to Elymus because of their many common characters, e.g.
, plants usually tufted; spikelets usually all similar, 1 per node; lemma lanceolate-oblong, rounded abaxially, 5-veined, veins connivent at apex.[1]
Physical Description
Flowers: Bloom Period: blooms repeatedly • Flower Color: inconspicuous, none
Size/Age/Growth
Size: 12-18" tall.
Habitat
Typically found at an altitude of 0 to 3,252 meters (0 to 10,669 feet).[2]
Biology
Growth
Culture: Space 36-48" apart.
Sunlight: Sun Exposure: Full Sun .
Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- (Auct.) Cavalier-Smith, 1998
- Infraphylum:
Angiospermae
(
)
- Auct.
- Class:
Spermatopsida
(
)
- Brongniart, 1843
- Subclass:
Commelinidae
(
)
- Takhtajan, 1967
- Superorder:
Juncanae
(
)
- Takhtajan, 1967
- Superorder:
Juncanae
(
- Subclass:
Commelinidae
(
- Class:
Spermatopsida
(
- Infraphylum:
Angiospermae
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Agropyron repens (L.) Beauv. • Agropyron repens (L.) P. Beauv. • Agropyron repens var. subulatum (Schreb.) Roemer & J. A. Schultes • Elytrigia repens (L.) Desv. Ex B. D. Jackson • Elytrigia repens (L.) Desv. Ex Nevski • Elytrigia repens var. vaillantiana (Wulfen & Schreb.) Prokudin • Elytrigia vaillantiana (Wulfen & Schreb.) Beetle • Triticum repens L. • Triticum vaillantianum Wulfen & Schreb.
Notes
Name
Status: Accepted Name
.
Last scrutiny: 15-Mar-2000
Similar Species
Members of the genus Elymus
ZipcodeZoo has pages for 85 species, subspecies, varieties, forms, and cultivars in this genus:
E. alaskanus alaskanus (Alaskan Wheatgrass) · E. alaskanus latiglumis (Alaskan Wheatgrass) · E. alaskanus subsp. latiglumis (Alaskan Wheatgrass) · E. albicans (Montana Wheatgrass) · E. arizonicus (Arizona Wheatgrass) · E. bakeri (Baker's Wheatgrass) · E. calderi (Yukon Wheatgrass) · E. californicus (California Bottlebrush Grass) · E. canadensis (Canada Wild Rye) · E. canadensis var. canadensis (Canada Wildrye) · E. caninus (Bearded Wheatgrass) · E. ciliaris (Wildrye) · E. dahuricus (Dahurian Wild Rye) · E. diversiglumis (Diverseglume Wildrye) · E. dorei (Dore's Wildrye) · E. elymoides brevifolius (Bottle-Brush Squirrel-Tail) · E. elymoides hordeoides (Bottlebrush Squirreltail) · E. elymoides subsp. brevifolius (Squirreltail) · E. elymoides subsp. californicus (Squirreltail) · E. elymoides subsp. hordeoides (Desert Squirreltail) · E. europaeus (Wood-Barley) · E. glaucus (Blue Wild Rye) · E. glaucus virescens (Blue Wild Rye) · E. glaucus subsp. jepsonii (Jepson's Blue Wildrye) · E. glaucus subsp. virescens (Blue Wildrye) · E. gmelinii (Wildrye) · E. hanseni (Hansen Squirreltail) · E. hansenii (Hansen Squirreltail) · E. hirsutus (Alaska Wild-Rye) · E. hoffmannii (Rs Wheatgrass) · E. hyperarcticus (Tundra Wildrye) · E. hystrix (Bottle-Brush Grass) · E. hystrix var. bigeloviana (Bottlebrush Grass) · E. hystrix var. hystrix (Eastern Bottle-Brush Grass) · E. interruptus (Texas Wildrye) · E. kronokensis (Arctic Wheatgrass) · E. kronokensis subsp. subalpinus (Northern Wheatgrass) · E. lanceolatus (Streambank Wheatgrass) · E. lanceolatus lanceolatus (Streambank Wheatgrass) · E. lanceolatus psammophilus (Streambank Wheatgrass) · E. lanceolatus subsp. psammophilus (Streambank Wheatgrass) · E. latiglumis (Alaskan Wheatgrass) · E. macrourus (Thickspike Wheatgrass) · E. magellanicus (Blue Lyme Grass) · E. maltei (Malt Wildrye) · E. mossii (Moss' Wildrye) · E. multisetus (Big Squirrel-Tail) · E. palmerensis (Palmer's Wildrye) · E. pendulina (Wildrye) · E. pinaloensis (Pinalo Wildrye) · E. pseudorepens (Creeping Wildrye) · E. repens (Couchgrass) · E. repens repens (Couch-Grass) · E. riparius (River Wild-Rye) · E. saundersii (Saunder Wildrye) · E. scaber (Common Wheat-Grass) · E. scribneri (Schribner Wheatgrass) · E. semicostatum (Drooping Wild Rye) · E. sibiricus (Siberian Wild-Rye) · E. sierrae (Sierra Wildrye) · E. stebbinsii (Parish Wheatgrass) · E. stebbinsii stebbinsii (Parish Wheatgrass) · E. submuticus (Virginia Wildrye) · E. subsecundus (Bearded Wheatgrass) · E. svensonii (Svenson's Wild-Rye) · E. tangutorum (Wildrye) · E. trachycaulus (Slender Wheatgrass) · E. trachycaulus subsecundus (Slender Wheatgrass) · E. trachycaulus trachycaulus (Slender Wheatgrass) · E. trachycaulus subsp. subsecundus (Slender Wheatgrass) · E. villosus (Hairy Wild Rye) · E. virginicus (Virginia Wild Rye) · E. virginicus var. halophilus (Terrell Grass) · E. virginicus var. virginicus (Virginia Wild Rye) · E. vulpinus (Rydberg's Wildrye) · E. wawawaiensis (Snake River Wheatgrass) · E. wiegandii (Wiegand's Wild Rye) · E. x dorei (Dore's Wildrye) · E. x hansenii (Hansen Squirreltail) · E. x maltei (Malt Wildrye) · E. x mossii (Moss' Wildrye) · E. x palmerensis (Palmer's Wildrye) · E. x pinaloensis (Pinalo Wildrye) · E. x pseudorepens (Quackgrass) · E. x saundersii (Saunders' Wheatgrass)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- A vegetation index of biotic integrity for small-order streams in southwest Montana and a floristic quality assessment for western Montana wetlands / [Helena, Mont.: Montana Natural Heritage Program, c2005]. url .
- Biodiversity and representativeness of research natural areas on national wildlife refuges in Montana, designated areas within Benton Lake, Charles M. Russell, Lake Mason, Medicine Lake, and Red Rock final report / submitted to the U.S. Fish and Wildlife Service; prepared by Stephen V. Cooper and Bonnie L. Heidel. Helena, MT: Montana Natural Heritage Program, c1999 url p. 45, p. 46.
- Botanical survey of the Ruby Range, Madison County, Montana, Dillon Resource Area, Bureau of Land Management / prepared by Jim Vanderhorst [et. al].; prepared for United States Department of Interior, Bureau of Land Management. Helena, MT: Montana Natural Heritage Program, [1997] url p. 47.
- Contributions from the United States National Herbarium 48 2003 Washington, D.C.: Smithsonian Institution Press, 1890- url p. 145, p. 27, p. 295, p. 297, p. 32, p. 35, p. 36, p. 362, p. 37, p. 38, p. 676, p. 679, p. 680, p. 681, p. 682, p. 683, p. 694.
- Ecologically significant wetlands in the Upper Yellowstone River watershed: including the Boulder, Clarks Fork Yellowstone, Shields, and Stillwater River drainages / Helena, Mont.: Montana Natural Heritage Program, 2001. url , , , .
- Great Basin naturalist memoirs. 1987 [Provo, Utah]Brigham Young University, 1976-1992. url p. 722, p. 725.
- Inventory of plants, plant communities and herpetofauna of concern in the vicinity of the Snow-Talon burn, Helena National Forest / Helena, Mont.: Montana Natural Heritage Program, c2005. url .
- Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url p. 302, p. 303, p. 304, p. 362, p. 363.
- Proceedings of the Cambridge Philosophical Society, Mathematical and physical sciences. Cambridge [etc.]Cambridge Philosophical Society. url p. 352.
- Rapid ecological assessment of selected state lands in southcentral Montana for plant species of special concern / prepared by James P. Vanderhorst; prepared for Montana Department of Fish, Wildlife and Parks. Helena, MT: Montana Natural Heritage Program, [1993] url p. 10, p. 11, p. 17.
- The Canadian field-naturalist. Ottawa, Ottawa Field-Naturalists' Club. url p. 184, p. 244, p. 253, p. 283, p. 297, p. 303, p. 305, p. 334, p. 429, p. 434.
- The plants of Prince Edward Island / Ottawa: Research Branch, Agriculture Canada, 1985. url p. 14.
- Woodhawk botanical survey, Fergus County, Montana, Lewistown District of the Bureau of Land Management / Helena, Mont.: Montana Natural Heritage Program, c1997. url p. 20, p. 21.
Notes
Contributors
Data Sources
Accessed through GBIF Data Portal November 23, 2007:
- Biologiezentrum der Oberoesterreichischen Landesmuseen, Biologiezentrum Linz
- Bundesamt für Naturschutz / Zentralstelle für Phytodiversität Deutschland, Bundesamt fuer Naturschutz / Zentralstelle fuer Phytodiversitaet Deutschland
- International Plant Genetic Resources Institute(IPGRI), EURISCO
- Jyväskylä University Museum - The Section of Natural Sciences, Vascular plant collection of Jyvaskyla University Museum
- Missouri Botanical Garden, Missouri Botanical Garden
- Natural History Museum, Vienna - Herbarium W, Herbarium W
- Oregon State University, Vascular Plant Collection
- Steiermärkisches Landesmuseum Joanneum - Herbarium GJO, Herbarium GJO
- The Danish Biodiversity Information Facility, Botany registration database by Danish botanists
- The Swedish Museum of Natural History
- , Botany
- The Swedish Museum of Natural History
- , Lund Botanical Museum
- University of Alaska Museum of the North, University of Alaska Museum of the North Herbarium
- Utah Valley State College
- , Utah Valley State College Herbarium
Identifiers
- Biodiversity Heritage Library NamebankID: 2671958
- Catalogue of Life Accepted Name Code: ITS-512839
- Global Biodiversity Information Facility Taxonkey: 13759318
- Globally Unique Identifier: urn:lsid:ipni.org:names:74039-3
- GRIN Nomen Number: 102069
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 512839
- MoBot NameID: 25515687
- Natural Heritage Network Species Identifier: PMPOA7H010
- U.S.D.A. Plant Symbol: TRVA4
- Zipcode Zoo Species Identifier: 20262
Footnotes
- "Elymus". in Flora of China Vol. 22 Page 1, 386, 387, 400. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Mean = 219.220 meters (719.226 feet), Standard Deviation = 272.590 based on 6,043 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
