1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus stenostachyus (Melderis) O.Andersson & Podlech

        This species is accepted, and its native range is E. Afghanistan.

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths pubescent. Culms slender; 50-60 cm long; 2-3 -noded. Culm-internodes distally pubescent. Ligule an eciliate membrane; 0.2-0.5 mm long; lacerate. Leaf-blades flat, or convolute; 11-17 cm long; 2-4 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous, or pubescent; hairy abaxially. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; erect, or drooping; bilateral; 12-15 cm long. Rhachis flattened; scabrous on surface; ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear. Rhachis internode tip flat. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 15-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent. Floret callus evident; acute.
    Fertile
    Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 15-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent. Floret callus evident; acute.
    Glume
    Glumes collateral; persistent; similar; shorter than spikelet. Lower glume lanceolate; 7.5-8.5 mm long; 0.8-0.9 length of upper glume; coriaceous; without keels; 3-5 -veined. Lower glume lateral veins prominent. Lower glume surface scabrous; rough on veins. Lower glume apex attenuate; awned; 1 -awned. Lower glume awn 2.5-4 mm long. Upper glume lanceolate; 8-10 mm long; 1 length of adjacent fertile lemma; coriaceous; without keels; 3-5 -veined. Upper glume lateral veins prominent. Upper glume surface scabrous; rough on veins. Upper glume apex attenuate; awned; 1 -awned. Upper glume awn 2.5-4 mm long.
    Florets
    Fertile lemma lanceolate; 8-9 mm long; coriaceous; 5 -veined. Lemma lateral veins prominent. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 9.5-20 mm long overall. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 3-3.5 mm long; yellow. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: western Asia.
    Reference
    Triticeae. Fl Iran 1995.

    Images

    Distribution

    Native to:

    Afghanistan

    Elymus stenostachyus (Melderis) O.Andersson & Podlech appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Rechinger, K.H. [32251], Pakistan K000433607 Unknown type material

    First published in Mitt. Bot. Staatssamml. München 12: 315 (1976)

    Accepted by

    • 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
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    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