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

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

    [GB]
    Habit
    Perennial. Culms erect; 45-60 cm long; 1-2 mm diam.; 2-3 -noded. Culm-internodes distally glabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blades involute; 5-9 cm long. Leaf-blade surface pilose; hairy adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 6-11 cm long. Rhachis flattened; glabrous on surface. Spikelet packing broadside to rhachis; lax. Rhachis internodes 7-18 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 12-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 12-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Glume
    Glumes persistent; similar. Lower glume lanceolate; 4-5 mm long; coriaceous; without keels; 3-5 -veined. Lower glume surface glabrous. Lower glume apex acuminate. Upper glume lanceolate; 6-7 mm long; coriaceous; without keels; 2-5 -veined. Upper glume surface glabrous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 8-9 mm long; coriaceous; 5 -veined. Lemma surface scabrous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 2-4 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate; adorned above. Palea apex truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; yellow.
    Fruits
    Caryopsis with adherent pericarp; yellow; hairy at apex.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Fl China 2005.

    Distribution

    Native to:

    Qinghai

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

    First published in Novon 12: 428 (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