1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus hondae (Kitag.) S.L.Chen

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

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Culms erect; 70-90 cm long; 3-4 -noded. Culm-nodes glabrous, or pubescent. Leaf-sheaths glabrous on surface to hirsute; with reflexed hairs. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades flat, or involute; 15-20 cm long; 3-7 mm wide. Leaf-blade surface glabrous, or pubescent; densely hairy. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; erect; bilateral; 13-20 cm long. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis; regular; 2 -rowed. Rhachis internodes 10-15(-35) mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 12-17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; pubescent. Floret callus pubescent. Floret callus hairs 0.5-1 mm long.
    Fertile
    Spikelets comprising 5 fertile florets; with diminished florets at the apex. Spikelets laterally compressed; 12-17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; pubescent. Floret callus pubescent. Floret callus hairs 0.5-1 mm long.
    Glume
    Glumes persistent; similar; subequal in width; shorter than spikelet. Lower glume lanceolate, or oblong; 8-10 mm long; coriaceous; without keels; 3-7 -veined. Lower glume lateral veins prominent. Lower glume surface scabrous; rough on veins. Lower glume apex acute, or acuminate; muticous, or mucronate. Upper glume lanceolate, or oblong; 9-11 mm long; coriaceous; without keels; 3-7 -veined. Upper glume lateral veins prominent. Upper glume surface scabrous; rough on veins. Upper glume apex acute, or acuminate; muticous, or mucronate.
    Florets
    Fertile lemma lanceolate; 10 mm long; coriaceous; without keel; 5 -veined. Lemma surface smooth, or scaberulous; rough on veins; glabrous. Lemma apex awned; 1 -awned. Principal lemma awn straight; 15-20 mm long overall. Palea 0.9 length of lemma; 2 -veined. Palea surface pubescent; hairy on back. Palea apex truncate, or obtuse. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3. 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:

    China North-Central, China Southeast, Inner Mongolia, Manchuria, Qinghai

    Elymus hondae (Kitag.) 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