1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus dahuricus Turcz. ex Griseb.

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 30-130 cm long. Ligule an eciliate membrane. Leaf-blades aciculate, or lanceolate; 10-30 cm long; 3-9 mm wide. Leaf-blade surface smooth, or scaberulous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight, or arcuate; bilateral; 7-23 cm long. Rhachis flattened. Spikelet packing broadside to rhachis. Spikelets in pairs. Fertile spikelets sessile; 2 in the cluster.
    Spikelets
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes similar; shorter than spikelet. Lower glume elliptic; 6-10 mm long; 1 length of upper glume; coriaceous; without keels; 3-5 -veined. Lower glume lateral veins ribbed. Lower glume apex acute; muticous, or awned; 1 -awned. Lower glume awn 0.5-2 mm long. Upper glume elliptic; 6-10 mm long; 1 length of adjacent fertile lemma; coriaceous; without keels; 3-5 -veined. Upper glume lateral veins ribbed. Upper glume apex acute; muticous, or awned; 1 -awned. Upper glume awn 0.5-2 mm long.
    Florets
    Fertile lemma elliptic; 6.5-11 mm long; coriaceous; keeled; keeled above; 5 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 8-15 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; elliptic; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Europe: eastern. Asia-temperate: Siberia, Soviet far east, Soviet Middle Asia, western Asia, China, Mongolia, and eastern Asia. Asia-tropical: India.
    Reference
    Triticeae. Fl Pak 1993.
    [GB]
    Habit
    Perennial; caespitose. Culms erect; robust; 100-130 cm long. Leaf-sheaths scaberulous. Ligule an eciliate membrane. Leaf-blades 5-9 mm wide. Leaf-blade surface scaberulous; rough on both sides.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 10-18 cm long. Rhachis flattened. Spikelet packing broadside to rhachis. Rhachis internodes linear. Spikelets in pairs. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 9-12 mm long; 1 length of upper glume; coriaceous; without keels; 5 -veined. Lower glume surface asperulous; rough on veins. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 2-4 mm long. Upper glume lanceolate; 9-12 mm long; 1.1 length of adjacent fertile lemma; coriaceous; without keels; 5 -veined. Upper glume surface asperulous; rough on veins. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 2-4 mm long.
    Florets
    Fertile lemma lanceolate; 8-11 mm long; coriaceous; 5 -veined. Lemma surface scaberulous. Lemma apex acute; awned; 1 -awned. Principal lemma awn 8-13 mm long overall. Palea 1 length of lemma. Palea keels ciliolate. 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: China. Asia-tropical: India.
    Reference
    Triticeae. Nevski 1995.
    [GB]
    Habit
    Perennial; caespitose. Culms 45-80(-100) cm long. Culm-nodes glabrous. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane. Leaf-blades flat, or convolute; 2.5-7 mm wide; glaucous. Leaf-blade surface smooth, or scaberulous; rough adaxially; glabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 4-10(-12) cm long. Rhachis flattened. Spikelet packing broadside to rhachis. Rhachis internodes linear. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 8-16 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 8-16 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 1 length of upper glume; coriaceous; without keels. Upper glume lanceolate; coriaceous; without keels. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 7.5-9 mm long; coriaceous; 5 -veined. Lemma surface scabrous; rough above. Lemma apex acute; awned; 1 -awned. Principal lemma awn curved; spreading; 6.5-9.5 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 1.2-1.7 mm long.
    Distribution
    Asia-temperate: Soviet far east.
    Reference
    Triticeae. Vasc Pl Russ Far East 2006.
    [GB]
    Habit
    Perennial; caespitose. Culms erect; 60-75 cm long; 1.5-2.5 mm diam. Leaf-sheaths longer than adjacent culm internode; hirsute. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades 9-15 cm long; 3-6 mm wide. Leaf-blade surface hirsute; hairy on both sides.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 9-12 cm long. Spikelet packing broadside to rhachis; 2 -rowed. Spikelets in pairs. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 6-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus bearded; base truncate. Rhachilla internodes 2 mm long; pilose.
    Fertile
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 6-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus bearded; base truncate. Rhachilla internodes 2 mm long; pilose.
    Glume
    Glumes similar; subequal in width; shorter than spikelet. Lower glume lanceolate; 4.5-7.5 mm long; 1 length of upper glume; coriaceous; much thinner on margins; without keels; 3-5 -veined. Lower glume surface puberulous; hairy on veins. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 1.5-2.5 mm long. Upper glume lanceolate; 4.5-7.5 mm long; 0.66 length of adjacent fertile lemma; coriaceous; with membranous margins; without keels; 3-5 -veined. Upper glume surface puberulous; hairy on veins. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 1.5-2.5 mm long.
    Florets
    Fertile lemma lanceolate to oblong; 7-11 mm long; coriaceous; 5 -veined. Lemma surface scaberulous; pilose; hairy above. Lemma margins ciliate. Lemma apex acute; awned; 1 -awned. Principal lemma awn 20-25 mm long overall. Palea 1 length of lemma. Palea surface pubescent; hairy on back; hairy above. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    Asia-temperate: China.
    Reference
    Triticeae. Wang & Yang 1996.

    Images

    Distribution

    Native to:

    Afghanistan, Altay, Amur, Buryatiya, China North-Central, China South-Central, China Southeast, Chita, East Himalaya, Inner Mongolia, Irkutsk, Japan, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kuril Is., Manchuria, Mongolia, Nepal, Pakistan, Primorye, Qinghai, Sakhalin, Tadzhikistan, Tibet, Turkmenistan, Tuva, Uzbekistan, West Himalaya, West Siberia, Xinjiang

    Introduced into:

    Baltic States, Krym

    Elymus dahuricus Turcz. ex Griseb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Turczaninow, N. S. [32] K000674861
    Turczaninow, N. S. [s.n.], Mongolia K000674862
    Norris, J. J. [25184], Pakistan K000032424 holotype

    First published in C.F.von Ledebour, Fl. Ross. 4: 331 (1852)

    Accepted by

    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • 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.
    • 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.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • 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.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    Literature

    Kew Backbone Distributions
    • Marhold, K. (ed.) (2012). IAPT/IOPB chromosome data 13 Taxon 61: 889-902.
    • Sheremetova, S.A., Ebel, A.L. & Buko, T.E. (2011). Supplement to the flora of Kemerovo region since 2001 till 2010 Turczaninowia 14(1): 65-74.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • 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.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
    • Koyama, T. (1987). Grasses of Japan and its neighboring regions: an identification manual: 1-570. Kodansha, Tokyo, Japan.
    • 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.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
    • Ovczinnikov, P.N. (ed.) (1957). Flora Tadzhikskoi SSR 1: 1-547. Izd-vo Akademii nauk SSSR, Moskva.
    • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
    • 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