1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus lancangensis S.L.Lu & Y.H.Wu

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

    [GB]
    Habit
    Perennial. Rhizomes short. Culms erect; 30-55 cm long; 2 mm diam.; 2-3 -noded. Culm-nodes black; glabrous. Leaf-sheaths mostly shorter than adjacent culm internode; puberulous (below). Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades 8-15 cm long; 2-4.4 mm wide. Leaf-blade surface pubescent; densely hairy; hairy on both sides. Leaf-blade margins ciliate.
    Inflorescences
    Inflorescence composed of racemes; embraced at base by subtending leaf. Racemes 1; single; drooping; bilateral; 10-15 cm long; 7-16 mm wide. Rhachis flattened; glabrous on surface. Spikelet packing broadside to rhachis; lax. Rhachis internodes 8-15 mm long (-40 at base). Spikelets solitary. Fertile spikelets sessile, or pedicelled. Pedicels 1-2 mm long.
    Spikelets
    Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-22(-24) mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-22(-24) mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar. Lower glume lanceolate; 4-6 mm long; coriaceous; without keels; 3 -veined. Lower glume apex acuminate. Upper glume lanceolate; 6-8.5 mm long; coriaceous; without keels; 5 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate, or oblong; 9 mm long; coriaceous; 5 -veined. Lemma surface glabrous, or hispidulous; hairy below. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn reflexed; 10-24 mm long overall; limb scabrous. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Palea surface puberulous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 1.5-1.8 mm long; green.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Lu & Wu 2009.

    Distribution

    Native to:

    Qinghai

    Elymus lancangensis S.L.Lu & Y.H.Wu appears in other Kew resources:

    First published in J. Jap. Bot. 82: 333 (2007)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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