Elymus wawawaiensis

• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Interesting Facts

Common Names

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

Biology

Reproduction

Duration: Perennial

Taxonomy

Notes

Place of publication : Phytologia 83:327. 1998 ("1997")

Name verified on 08-Nov-2007 by ARS Systematic Botanists. Last updated: 08-Nov-2007

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

• Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url , p. 310, p. 312, p. 313, p. 314, p. 318, p. 319, p. 320, p. 321, p. 322, p. 323, p. 325, p. 326, p. 327, p. 328, p. 329, p. 332.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
• Global Biodiversity Information Facility. Accessed March 16, 2008. 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)
• USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Data Sources

Accessed through GBIF Data Portal March 16, 2008:

• Utah State University: USU-UTC Specimen Database

Identifiers

• Biodiversity Heritage Library NamebankID: 5962296
• Global Biodiversity Information Facility Taxonkey: 15755582
• Globally Unique Identifier: urn:lsid:ipni.org:names:316524-2
• GRIN Nomen Number: 317738
• Natural Heritage Network Species Identifier: PMPOA2H1T0
• U.S.D.A. Plant Symbol: ELWA2
• Zipcode Zoo Species Identifier: 37188

Footnotes

1. "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]

©2004-2012 David Stang. All rights reserved.