1. Family: Poaceae Barnhart
    1. Genus: Leymus Hochst.
      1. Leymus komarovii (Roshev.) J.L.Yang & C.Yen

        This species is accepted, and its native range is China to Russian Far East and Korea.

    [GB]
    Habit
    Perennial; culms solitary. Rhizomes short. Culms erect; 30-130 cm long; 4-6 -noded. Culm-internodes distally glabrous. Leaf-sheaths glabrous on surface, or puberulous. Ligule an eciliate membrane; 1.5 mm long; truncate. Leaf-blades linear, or lanceolate; 10-20 cm long; 10-25 mm wide; dark green. Leaf-blade surface scaberulous; rough abaxially; pilose; sparsely hairy; hairy adaxially. Leaf-blade apex acute.
    Inflorescences
    Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; arcuate; bilateral; 10-20 cm long; 10-15 mm wide. Rhachis pubescent on surface; ciliate on margins. Spikelet packing broadside to rhachis; lax; with lowest internode elongated. Rhachis internodes linear; 3-7 mm long. Spikelets in pairs. Fertile spikelets sessile; 2 in the cluster.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-2 mm long; sparsely hairy. Floret callus pubescent.
    Fertile
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-2 mm long; sparsely hairy. Floret callus pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume subulate; 3-8 mm long; 1 length of upper glume; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous; puberulous. Upper glume subulate; 3-8 mm long; 1 -veined. Upper glume lateral veins absent. Upper glume surface puberulous.
    Florets
    Fertile lemma lanceolate; 9-12 mm long; coriaceous; without keel; 5-7 -veined. Lemma surface hispidulous. Lemma apex attenuate; awned; 1 -awned. Principal lemma awn 10-15 mm long overall; 1 length of lemma; limb scabrous. Palea 8-9 mm long; 0.75-0.9 length of lemma. Palea keels ciliolate. Palea apex dentate; 2 -fid.
    Flowers
    Lodicules 2. Anthers 3; 2-3 mm long. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; linear; sulcate on hilar side; hairy at apex.
    Distribution
    Asia-temperate: Soviet far east and China.
    Reference
    Triticeae. Koyama 1994.

    Distribution

    Native to:

    Amur, China North-Central, China Southeast, Khabarovsk, Korea, Manchuria, Mongolia, Primorye, Qinghai, Sakhalin

    Leymus komarovii (Roshev.) J.L.Yang & C.Yen appears in other Kew resources:

    First published in J. Syst. Evol. 47: 84 (2009)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP 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.
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.

    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