Interesting Facts
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]
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
- Subclass:
Commelinidae
(
- Class:
Spermatopsida
(
- Infraphylum:
Angiospermae
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Sitanion hystrix var. californicum (J. G. Sm.) F. D. Wilson
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
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Further Reading
Notes
Contributors
- Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
- Global Biodiversity Information Facility. Accessed March 30, 2007. http://www.gbif.org Mediated distribution data from provider.
- USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 27, 2008)
Identifiers
- Biodiversity Heritage Library NamebankID: 8287883
- Catalogue of Life Accepted Name Code: ITS-525112
- Global Biodiversity Information Facility Taxonkey: 13902333
- Globally Unique Identifier: urn:lsid:ipni.org:names:1004611-1
- Zipcode Zoo Species Identifier: 3728183
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]
