1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus magnicaespes D.F.Cui

        This species is accepted, and its native range is NW. China.

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 50-70 cm long; 2 mm diam.; 2 -noded. Leaf-sheaths mostly shorter than adjacent culm internode; glabrous on surface. Ligule an eciliate membrane. Leaf-blades filiform; flat, or involute; 1.5-2.5 mm wide; stiff. Leaf-blade surface scabrous; rough adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight; bilateral; 8-12 cm long; bearing 7-12 fertile spikelets on each. Rhachis scabrous on surface; ciliate on margins. Spikelet packing broadside to rhachis; 2 -rowed. Rhachis internodes 10 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 11-18 mm long; 2-3 mm wide; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus base truncate. Rhachilla internodes 1-1.5 mm long; pubescent. Floret callus glabrous.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 11-18 mm long; 2-3 mm wide; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus base truncate. Rhachilla internodes 1-1.5 mm long; pubescent. Floret callus glabrous.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3-6 mm long; 0.5-0.66 length of upper glume; coriaceous; without keels; 4-5 -veined. Lower glume apex acuminate; muticous, or mucronate. Upper glume lanceolate; 6-9 mm long; 0.6-0.9 length of adjacent fertile lemma; coriaceous; without keels; 3-5 -veined. Upper glume apex acuminate; muticous, or mucronate.
    Florets
    Fertile lemma lanceolate to oblong; 10 mm long; coriaceous; without keel; 5 -veined. Lemma lateral veins distinct; evenly spaced. Lemma apex acute; awned; 1 -awned. Principal lemma awn 0-10 mm long overall. Palea 1 length of lemma. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 3 mm long. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Cui 1996.

    Distribution

    Native to:

    Xinjiang

    Elymus magnicaespes D.F.Cui appears in other Kew resources:

    First published in Bull. Bot. Res., Harbin 10(3): 25 (1990)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • 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
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

    Sources

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