1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus tibeticus (Melderis) G.Singh

        This species is accepted, and its native range is Tibet to China (Yunnan).

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths pubescent. Culms 70-100 cm long; 3-4 -noded. Culm-nodes pubescent. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.2-0.4 mm long; truncate. Leaf-blades 12-16 cm long; 3-6 mm wide. Leaf-blade surface scabrous; rough abaxially; pilose; sparsely hairy; hairy adaxially. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; erect, or ascending; bilateral; 10-16 cm long. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear. Rhachis internode tip flat. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Fertile
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 7-8.5 mm long; 0.8-1 length of upper glume; coriaceous; much thinner on margins; without keels; 5-7 -veined. Lower glume lateral veins ribbed. Lower glume surface scabrous; rough on veins. Lower glume apex attenuate; muticous, or awned; 1 -awned. Lower glume awn 0-6 mm long. Upper glume lanceolate; 8.5-10 mm long; 1 length of adjacent fertile lemma; coriaceous; with hyaline margins; without keels; 5-7 -veined. Upper glume lateral veins ribbed. Upper glume surface scabrous; rough on veins. Upper glume hairs 2 mm long. Upper glume apex attenuate; muticous, or awned; 1 -awned. Upper glume awn 0-6 mm long.
    Florets
    Fertile lemma oblong; 8-10 mm long; coriaceous; 5 -veined. Lemma lateral veins ribbed. Lemma surface puberulous; hairy above. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 10-17 mm long overall. Palea 1 length of lemma. Palea keels ciliolate. Palea surface puberulous; hairy on back; hairy above. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 2-2.3 mm long; yellow. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China. Asia-tropical: India.
    Reference
    Triticeae. Bor 1994.

    Distribution

    Native to:

    China South-Central, East Himalaya, Tibet

    Elymus tibeticus (Melderis) G.Singh appears in other Kew resources:

    First published in Taxon 32: 640 (1983)

    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.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.

    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