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  1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus lanceolatus (Scribn. & J.G.Sm.) Gould

        This species is accepted, and its native range is E. Siberia, Alaska to W. & Central U.S.A.

    [GB]
    Habit
    Perennial; culms solitary, or caespitose. Rhizomes elongated; wiry. Culms 40-80 cm long. Culm-internodes thin-walled. Leaf-sheaths pubescent, or pilose. Leaf-sheath auricles falcate; 1-1.5 mm long. Ligule an eciliate membrane; 0.5 mm long; erose. Leaf-blades involute; 2-4 mm wide; stiff; glaucous. Leaf-blade surface scaberulous; rough adaxially, or on both sides.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 4-20 cm long. Rhachis flattened. Spikelet packing broadside to rhachis. Rhachis internodes linear. Rhachis internode tip flat. Spikelets solitary, or in pairs. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 4-10 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Fertile
    Spikelets comprising 4-10 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Glume
    Glumes collateral; persistent; similar; shorter than spikelet. Lower glume lanceolate; 7-10 mm long; 1 length of upper glume; coriaceous; without keels; 5-7 -veined. Lower glume surface pubescent. Lower glume apex acute. Upper glume lanceolate; 7-9 mm long; coriaceous; without keels; 3-5 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate to oblong; 8-10 mm long; coriaceous; 5-7 -veined. Lemma apex acute; awned; 1 -awned. Palea 1 length of lemma. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: Siberia. North America: Subarctic, western Canada, northwest USA, north-central USA, northeast USA, and southwest USA.
    Reference
    Triticeae. Fl Pac NW 1994.

    Images

    Distribution

    Native to:

    Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Illinois, Manitoba, Michigan, Montana, Nebraska, Nevada, New Mexico, North Dakota, Ontario, Oregon, Saskatchewan, South Dakota, Washington, Wisconsin, Wyoming, Yakutskiya, Yukon

    Synonyms

    Other Data

    Elymus lanceolatus (Scribn. & J.G.Sm.) Gould appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 7, 2014 Richardson, J. [s.n.], Northwest Territories K001057650 lectotype
    Jan 1, 1989 Richardson, J. [s.n.] K001065428 holotype
    Borrer, W.J. [s.n.] K001057651

    Bibliography

    First published in Madroño 10: 94 (1949)

    Accepted by

    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions

    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0