1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus caucasicus (K.Koch) Tzvelev

        This species is accepted, and its native range is Caucasus to Iran.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms erect, or geniculately ascending; 50-100 cm long. Culm-internodes distally glabrous, or pubescent. Ligule an eciliate membrane. Leaf-blades 9-18 cm long; 3-7 mm wide; flaccid; mid-green, or glaucous. Leaf-blade surface scabrous; rough adaxially; glabrous, or pubescent; sparsely hairy; hairy adaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; drooping; bilateral; 9-11 cm long; bearing 4-5 fertile spikelets on each. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis; lax. Rhachis internodes linear; 20-24 mm long. Rhachis internode tip flat. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 20-24 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 20-24 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes collateral; persistent; similar; shorter than spikelet. Lower glume oblong; 2-4 mm long; 0.5-0.75 length of upper glume; coriaceous; without keels; 5-7 -veined. Lower glume apex acuminate. Upper glume oblong; 4-5 mm long; 0.4 length of adjacent fertile lemma; coriaceous; without keels; 5-7 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma oblong; 10-12 mm long; coriaceous; 5 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn 25-30 mm long overall. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia.
    Reference
    Triticeae. Fl Iran 1995.

    Images

    Distribution

    Native to:

    Iran, North Caucasus, Transcaucasus

    Elymus caucasicus (K.Koch) Tzvelev appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Regel, E. A. von [s.n.], Kyrgyzstan K000433042 syntype

    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.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.

    Literature

    Kew Backbone Distributions
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • 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