1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus laxinodis (L.B.Cai) S.L.Chen & G.H.Zhu

        This species is accepted, and its native range is Qinghai to China (Sichuan).

    [GB]
    Habit
    Perennial. Culms erect, or geniculately ascending; 40-80 cm long; 1-1.5 mm diam.; 3-4 -noded. Culm-internodes distally pubescent. Leaf-sheaths puberulous. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blades 10-16 cm long; 4-6 mm wide. Leaf-blade surface hirsute; hairy on both sides.
    Inflorescences
    Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; straight, or arcuate; bilateral; 8-11 cm long. Rhachis flattened; puberulous on surface. Spikelet packing broadside to rhachis; lax. Rhachis internodes 13-28 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-18 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-18 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar. Lower glume lanceolate; 3-4 mm long; coriaceous; without keels; 3-5 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate. Upper glume lanceolate; 4-5 mm long; coriaceous; without keels; 3-5 -veined. Upper glume surface scabrous; rough on veins. Upper glume margins scabrous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 9-10 mm long; coriaceous; 5 -veined. Lemma surface puberulous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn curved; 12-16 mm long overall. Palea 0.9 length of lemma; 2 -veined. Palea keels scabrous. Palea surface puberulous; hairy on back. Palea apex truncate, or obtuse. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 2-2.5 mm long; yellow.
    Fruits
    Caryopsis lanceolate; 6-7 mm long.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Fl China 2005.

    Distribution

    Native to:

    China South-Central, Qinghai

    Elymus laxinodis (L.B.Cai) S.L.Chen & G.H.Zhu appears in other Kew resources:

    First published in Novon 12: 427 (2002)

    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