1. Family: Poaceae Barnhart
    1. Genus: Cleistogenes Keng
      1. Cleistogenes squarrosa (Trin.) Keng

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

    [GB]
    Habit
    Perennial; mat forming. Basal innovations extravaginal. Culms geniculately ascending; 15-25 cm long; 0.5-1 mm diam.; 6-8 -noded. Culm-internodes unequal, the upper longer; 5-15 cm long. Culm-nodes glabrous. Lateral branches sparse. Leaf-sheaths loose; longer than adjacent culm internode; glabrous on surface. Ligule a fringe of hairs; 0.2 mm long. Leaf-blades linear, or lanceolate; 1-5 cm long; 0.5-1.5 mm wide. Leaf-blade surface scabrous. Leaf-blade margins scabrous; ciliate; hairy at base. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence composed of racemes. Racemes single, or borne along a central axis; unilateral; 0.5-1.2 cm long, or 3-4 cm long (when single); bearing few fertile spikelets; bearing 1-2 fertile spikelets on each. Central inflorescence axis 3-4 cm long. Spikelet packing lax. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.5-1 mm long.
    Spikelets
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-1.8 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Fertile
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-1.8 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Glume
    Glumes persistent; dissimilar; shorter than spikelet. Lower glume lanceolate; 2-2.4 mm long; 0.6 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex obtuse, or acute. Upper glume lanceolate; 3.5-4 mm long; 0.4 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume lateral veins absent, or distinct. Upper glume surface scabrous. Upper glume apex obtuse, or acute.
    Florets
    Fertile lemma lanceolate; 5.2-6 mm long; 1.2-1.4 mm wide; membranous; keeled; 3-5 -veined. Lemma surface asperulous. Lemma margins ciliate; hairy below. Lemma hairs 0.7-1 mm long. Lemma apex dentate; 2 -fid; with filiform lobes; with lobes 0.6 mm long; awned; 1 -awned. Principal lemma awn from a sinus; 3-4 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Palea apex dentate; 2 -fid; awned; awns 0.8 mm long. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Cleistogene
    Cleistogenes present; in upper sheaths.
    Distribution
    Europe: eastern. Asia-temperate: Siberia, Soviet far east, Soviet Middle Asia, Caucasus, China, and Mongolia.
    Reference
    Eragrostideae. Conert.

    Images

    Distribution

    Native to:

    Altay, Amur, Buryatiya, Central European Rus, China North-Central, China Southeast, Chita, Inner Mongolia, Irkutsk, Kazakhstan, Kirgizstan, Krasnoyarsk, Manchuria, Mongolia, North Caucasus, Primorye, Qinghai, South European Russi, Tuva, Ukraine, West Siberia, Xinjiang, Yakutskiya

    Cleistogenes squarrosa (Trin.) Keng appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Semenov [s.n.] Kengia squarrosa K000899934
    Ledebour, C.F.von [s.n.], Altay Kengia squarrosa K000899932
    s.coll. [s.n.] Kengia squarrosa K000899933

    First published in Sinensia 5: 156 (1934)

    Accepted by

    • 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.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • 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.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    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.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • 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.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Roshevitz, R.J. & al. (eds.) (1950). Flora Kirgizskoi SSR 2: 1-315. Frunze : Izd-vo KirgizFAN SSSR.

    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