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

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

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending; 80-120 cm long; 3 mm diam.; 4-5 -noded; with 0.66-0.75 of their length below uppermost node. Culm-internodes distally glabrous. Leaf-sheaths mostly shorter than adjacent culm internode; smooth; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long; scarious; truncate. Leaf-blades 13-25 cm long; 6-9 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 7.5-8.5 cm long. Rhachis flattened; ciliate on margins. Spikelet packing broadside to rhachis; regular; 2 -rowed. Rhachis internodes 4-5 mm long. Spikelets solitary. Fertile spikelets sessile.
    Sterile
    Basal sterile spikelets rudimentary; 1-3 in number.
    Spikelets
    Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 12-14 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; pubescent. Floret callus pubescent. Basal sterile spikelets rudimentary; 1-3 in number.
    Fertile
    Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 12-14 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; pubescent. Floret callus pubescent.
    Glume
    Glumes persistent; similar; subequal in width; shorter than spikelet. Lower glume lanceolate; 8-10 mm long; coriaceous; much thinner on margins; without keels; 3-5 -veined. Lower glume surface scabrous. Lower glume apex acute, or acuminate; muticous, or awned; 1 -awned. Lower glume awn 1-2 mm long. Upper glume lanceolate; 8-10 mm long; coriaceous; with membranous margins; without keels; 3-5 -veined. Upper glume surface scabrous. Upper glume apex acute, or acuminate; muticous, or awned; 1 -awned. Upper glume awn 1-2 mm long.
    Florets
    Fertile lemma lanceolate; 9-10 mm long; coriaceous; much thinner on margins; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface puberulous. Lemma apex awned; 1 -awned. Principal lemma awn 1-3 mm long overall; 1 length of lemma. Palea 1 length of lemma; 2 -veined. Palea surface pubescent; hairy on back; hairy above. Palea apex emarginate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; 1.8 mm long; membranous. Anthers 3; 2 mm long; yellow. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; 3 mm long; dark brown; hairy at apex; apex unappendaged. Hilum linear.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Chen 2001.

    Distribution

    Native to:

    Qinghai, Xinjiang

    Elymus sylvaticus (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