1. Family: Poaceae Barnhart
    1. Genus: Cleistogenes Keng
      1. Cleistogenes caespitosa Keng

        This species is accepted, and its native range is N. & E. China.

    [GB]
    Habit
    Perennial. Cataphylls evident. Culms erect; 30-40 cm long; 1 mm diam.; 7-8 -noded. Culm-internodes similar in length. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths tight; mostly shorter than adjacent culm internode, or longer than adjacent culm internode; smooth. Leaf-sheath oral hairs ciliate; 2-3 mm long. Ligule a fringe of hairs; 0.2 mm long. Leaf-blades erect, or ascending; involute; 2.5-10 cm long; 1.5-3.5 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence composed of racemes. Racemes borne along a central axis; unilateral; 0.8-2.5 cm long. Central inflorescence axis 4-6 cm long. Spikelet packing lax. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 1-3 mm long.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.6-1.8 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Fertile
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.6-1.8 mm long; pubescent; hairy at tip. Floret callus pubescent.
    Glume
    Glumes persistent; dissimilar; shorter than spikelet; gaping. Lower glume ovate; 1-1.5 mm long; 0.4 length of upper glume; hyaline; 1-keeled; 0-1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex obtuse, or acute. Upper glume lanceolate; 2.5-3.5 mm long; 0.5 length of adjacent fertile lemma; hyaline; 1-keeled; 0-1 -veined. Upper glume primary vein absent, or distinct. Upper glume lateral veins absent. Upper glume surface scabrous. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 4.8-5.3 mm long; 1.6 mm wide; membranous; keeled; 3-5 -veined. Lemma surface asperulous. Lemma margins pubescent; hairy below. Lemma apex entire; truncate, or obtuse; awned; 1 -awned. Principal lemma awn 0.4-0.8 mm long overall. Palea 1 length of lemma; 2 -veined. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 1.8-2 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Cleistogene
    Cleistogenes present; in upper sheaths.
    Distribution
    Asia-temperate: China.
    Reference
    Eragrostideae. Conert.

    Distribution

    Native to:

    China North-Central, China Southeast, Inner Mongolia, Manchuria

    Cleistogenes caespitosa Keng appears in other Kew resources:

    First published in Sinensia 5: 154 (1934)

    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.

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

    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