1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus retroflexus B.Rong Lu & B.Salomon

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

    [GB]
    Habit
    Perennial. Culms erect; 55-75 cm long; 3-4 -noded. Culm-internodes distally glabrous. Leaf-sheaths smooth; glabrous on surface. Leaf-sheath auricles falcate; 1-1.2 mm long. Ligule an eciliate membrane; 0.4-0.5 mm long; lacerate. Leaf-blades 4-10 cm long; 1-2 mm wide. Leaf-blade surface scabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; drooping; bilateral; 6.5-12 cm long; 5-10 mm wide. Rhachis flattened; smooth on surface. Spikelet packing broadside to rhachis; lax. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-20 mm long; 2-5 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2.5-3 mm long; pilose.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15-20 mm long; 2-5 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2.5-3 mm long; pilose.
    Glume
    Glumes persistent; similar. Lower glume elliptic; 1.5-5 mm long; coriaceous; much thinner on margins; without keels; 3 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; muticous, or mucronate. Upper glume elliptic; 3-7.5 mm long; coriaceous; with membranous margins; without keels; 3-5 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 9-12 mm long; 1-1.5 mm wide; coriaceous; 5 -veined. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn curved; 35-55 mm long overall. Palea lanceolate; 8-9 mm long; 0.9 length of lemma; 2 -veined. Palea keels ciliolate. Palea apex truncate; ciliate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 2.5-3 mm long; yellow.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Fl China 2005.

    Images

    Distribution

    Elymus retroflexus B.Rong Lu & B.Salomon appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Yang, J.-L. [880786], Tibet K000674898 isotype

    First published in Nordic J. Bot. 13: 355 (1993)

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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