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

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

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Culms erect; 60-120 cm long. Culm-internodes smooth; distally glabrous. Ligule an eciliate membrane. Leaf-blades 4-8 mm wide. Leaf-blade surface scabrous; pilose; densely hairy; hairy adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 10-20 cm long. Rhachis flattened. Spikelet packing broadside to rhachis; distant; regular; 2 -rowed. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Fertile
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 7-9 mm long; 1 length of upper glume; coriaceous; without keels; 3-5 -veined. Lower glume apex acuminate; awned. Lower glume awn 1-2 mm long. Upper glume lanceolate; 7-8 mm long; 0.7-0.8 length of adjacent fertile lemma; coriaceous; without keels; 3-5 -veined. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 1-2 mm long.
    Florets
    Fertile lemma lanceolate to oblong; 9-11 mm long; coriaceous; without keel; 5 -veined. Lemma surface scaberulous; rough above; puberulous; hairy at base. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 7-13 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Distribution
    Asia-temperate: Siberia.
    Reference
    Triticeae. Tzvelev 2011.

    Distribution

    Native to:

    Yakutskiya

    Elymus amgensis Tzvelev appears in other Kew resources:

    First published in Bot. Zhurn. (Moscow & Leningrad) 93: 1593 (2008)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    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