1. Family: Poaceae Barnhart
    1. Genus: Cleistogenes Keng
      1. Cleistogenes serotina (L.) Keng

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

    [GB]
    Habit
    Perennial; culms solitary. Basal innovations extravaginal. Culms geniculately ascending; 30-60(-90) cm long; 1 mm diam.; 10-16 -noded. Culm-internodes similar in length. Culm-nodes brown; glabrous. Leaf-sheaths tight; longer than adjacent culm internode; smooth, or scaberulous. Ligule a fringe of hairs; 0.4 mm long. Leaf-blades spreading; flat, or involute; 4-8 cm long; 3-5 mm wide. Leaf-blade surface scaberulous; rough on both sides. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes borne along a central axis; spreading; unilateral; 1-4 cm long; bearing 6-8 fertile spikelets on each. Central inflorescence axis 4-8 cm long. Spikelet packing lax. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 1-4 mm long.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.2-1.5 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.2-1.5 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Glume
    Glumes persistent; dissimilar; shorter than spikelet. Lower glume lanceolate; 2.3-2.8 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume surface scabrous. Lower glume apex acute. Upper glume lanceolate; 3-4 mm long; 0.66 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 acute, or acuminate.
    Florets
    Fertile lemma lanceolate; 5-6 mm long; membranous; mid-green and purple; keeled; 5 -veined. Lemma surface asperulous. Lemma margins ciliolate; hairy below. Lemma hairs 0.5 mm long. Lemma apex dentate; 2 -fid; with lobes 0.1 mm long; mucronate, or awned; 1 -awned. Principal lemma awn from a sinus; 0.5-1 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Palea surface pubescent; hairy on flanks. Palea apex dentate; 2 -fid; with excurrent keel veins. 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: central, southwestern, southeastern, and eastern. Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia.
    Reference
    Eragrostideae. Conert.

    Distribution

    Native to:

    Albania, Austria, Bulgaria, Czechoslovakia, France, Greece, Hungary, Italy, Kazakhstan, Krym, North Caucasus, Romania, Sicilia, South European Russi, Spain, Switzerland, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Ukraine, Yugoslavia

    Cleistogenes serotina (L.) Keng appears in other Kew resources:

    First published in Sinensia 5: 149 (1934)

    Accepted by

    • 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.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Literature

    Kew Backbone Distributions
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Fedtschenko, B.A. & al. (1932). Flora Turkmenii 1: 1-340. Turkmenskoe gosudarstvennoe izd., Ashkhabad.

    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