1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus glaberrimus (Keng & S.L.Chen) S.L.Chen

        This species is accepted, and its native range is Xinjiang to Qinghai.

    [GB]
    Habit
    Perennial; caespitose. Roots woolly. Culms erect; 80 cm long; 1-2 mm diam.; 3 -noded; with 0.25-0.33 of their length below uppermost node. Culm-nodes glabrous. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long; scarious. Leaf-blades flat, or involute; 8-15 cm long; 3-4 mm wide; stiff; glaucous. Leaf-blade surface scabrous; rough adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight; bilateral; 8-12 cm long; bearing 6-11 fertile spikelets on each. Rhachis flattened; smooth on surface; glabrous on surface; scabrous on margins. Spikelet packing broadside to rhachis; regular; 2 -rowed. Rhachis internodes 7-17 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 13-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; glabrous. Floret callus glabrous.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 13-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; glabrous. Floret callus glabrous.
    Glume
    Glumes persistent; similar; subequal in width; shorter than spikelet. Lower glume lanceolate, or oblong; 4-6 mm long; coriaceous; much thinner on margins; without keels; 5 -veined. Lower glume surface glabrous. Lower glume apex entire, or with a unilateral tooth; acute; muticous. Upper glume lanceolate, or oblong; 5.5-7.5 mm long; coriaceous; with membranous margins; without keels; 3-5 -veined. Upper glume surface glabrous. Upper glume apex entire, or with a unilateral tooth; acute; muticous.
    Florets
    Fertile lemma lanceolate, or oblong; 9 mm long; coriaceous; without keel; 5 -veined. Lemma apex attenuate; awned; 1 -awned. Principal lemma awn curved; 10-20 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Palea surface smooth, or scaberulous; glabrous. Palea apex emarginate, or truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 5 mm long; yellow. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; hairy at apex; apex unappendaged. Hilum linear.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Chen 2001.

    Distribution

    Native to:

    Qinghai, Xinjiang

    Elymus glaberrimus (Keng & S.L.Chen) S.L.Chen appears in other Kew resources:

    First published in Bull. Nanjing Bot. Gard. 1987: 9 (1988)

    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