1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus pendulinus (Nevski) Tzvelev

        This species is accepted, and its native range is Siberia to Korea and N. China.

    [GB]
    Habit
    Perennial. Culms erect; 20-85 cm long; 1.8-2.5 mm diam.; 3-4 -noded. Leaf-sheaths mostly shorter than adjacent culm internode; glabrous on surface, or pubescent. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blades flat, or involute; 5-10 cm long; 3-5 mm wide. Leaf-blade surface hirsute; hairy adaxially. Perennial; caespitose; clumped loosely. Culms 70-110 cm long. Ligule an eciliate membrane. Leaf-blades 6-10 mm wide; flaccid. Leaf-blade surface scabrous; rough on both sides; glabrous.
    Inflorescences
    Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; drooping; bilateral; 9-13 cm long; 9-15 mm wide. Rhachis flattened; pubescent on surface. Spikelet packing broadside to rhachis. Rhachis internodes 4-6(-24) mm long. Spikelets solitary. Fertile spikelets sessile. Inflorescence composed of racemes. Racemes 1; single; drooping; bilateral; 15-22 cm long. Rhachis flattened; puberulous on surface. Spikelet packing broadside to rhachis. Rhachis internodes linear. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 14-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent. Spikelets comprising 5-6 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 13-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 14-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent. Spikelets comprising 5-6 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 13-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar. Lower glume lanceolate; 4.5-6 mm long; coriaceous; without keels; 3-5 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; mucronate. Upper glume lanceolate; 5.5-7 mm long; coriaceous; without keels; 3-5 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate; mucronate. Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6-9 mm long; 1 length of upper glume; coriaceous; without keels; 5 -veined. Lower glume surface scabrous. Lower glume apex setaceously attenuate. Upper glume lanceolate; 6-9 mm long; 0.75-0.9 length of adjacent fertile lemma; coriaceous; without keels; 5 -veined. Upper glume surface scabrous. Upper glume apex setaceously attenuate.
    Florets
    Fertile lemma lanceolate; 8-9 mm long; coriaceous; 5 -veined. Lemma surface pilose. Lemma margins villous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 5-6 mm long overall. Palea 1.1 length of lemma; 2 -veined. Palea keels scabrous. Palea surface glabrous. Palea apex truncate. Apical sterile florets resembling fertile though underdeveloped. Fertile lemma lanceolate; 8-10 mm long; coriaceous; 5 -veined. Lemma surface pubescent; hairy above. Lemma margins ciliate; hairy above. Lemma apex acute; awned; 1 -awned. Principal lemma awn 15-23 mm long overall. Palea 1 length of lemma. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 2.5 mm long. Lodicules 2; membranous. Anthers 3; 2 mm long. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; hairy at apex. Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China. Asia-temperate: Siberia, Soviet far east, China, and Mongolia.
    Reference
    Triticeae. Fl China 2005. Triticeae. Fl USSR 1995.

    Distribution

    Native to:

    Altay, Amur, Buryatiya, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia, Khabarovsk, Korea, Krasnoyarsk, Manchuria, Mongolia, Primorye, Qinghai, Tuva

    Elymus pendulinus (Nevski) Tzvelev appears in other Kew resources:

    First published in Trudy Bot. Inst. Komarova Akad. Nauk SSSR, Rast. Tsentral. Azii 4: 218 (1968)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • 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.

    Literature

    Kew Backbone Distributions
    • Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas) 2: 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • 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