1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus praeruptus Tzvelev

        This species is accepted, and its native range is Central Asia.

    [GB]
    Habit
    Perennial; caespitose. Culms 60-95 cm long. Culm-nodes glabrous, or pubescent. Ligule an eciliate membrane. Leaf-blades involute; 2-4 mm wide; glaucous. Leaf-blade surface ribbed; puberulous; hairy adaxially, or on both sides.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 9-13 cm long. Rhachis smooth on margins. Spikelet packing broadside to rhachis; lax. Rhachis internodes linear; 10-20 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus pubescent.
    Fertile
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 10-15 mm long; 1 length of upper glume; coriaceous; without keels; 7 -veined. Lower glume surface smooth, or asperulous; rough on veins. Lower glume apex entire, or with a unilateral tooth; acute; mucronate. Upper glume lanceolate; 10-15 mm long; 1 length of adjacent fertile lemma; coriaceous; without keels; 7 -veined. Upper glume surface smooth, or asperulous; rough on veins. Upper glume apex entire, or with a unilateral tooth; acute; mucronate.
    Florets
    Fertile lemma lanceolate; 10-12 mm long; coriaceous; 5 -veined. Lemma surface scabrous. Lemma apex dentate; 2 -fid; acute; awned; 1 -awned. Principal lemma awn from a sinus; spreading; 20-25 mm long overall. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 3-4.5 mm long. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: Soviet Middle Asia.
    Reference
    Triticeae. Fl USSR 1995.

    Images

    Distribution

    Native to:

    Kirgizstan, Tadzhikistan, Uzbekistan

    Elymus praeruptus Tzvelev appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Michelson, A. [s.n.], Uzbekistan K000674918

    First published in Novosti Sist. Vyssh. Rast. 9: 61 (1972)

    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
    • Ovczinnikov, P.N. (ed.) (1957). Flora Tadzhikskoi SSR 1: 1-547. Izd-vo Akademii nauk SSSR, Moskva.
    • Roshevitz, R.J. & al. (eds.) (1950). Flora Kirgizskoi SSR 2: 1-315. Frunze : Izd-vo KirgizFAN SSSR.
    • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.

    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