1. Family: Poaceae Barnhart
    1. Cleistogenes Keng

      1. This genus is accepted, and its native range is Temp. Eurasia.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (11), or short (2). Culms erect (11), or geniculately ascending (5); robust (1/1); 15-44.3-100 cm long. Culm-internodes similar in length (6/7), or unequal, the upper longer (1/7). Lateral branches lacking (7/8), or sparse (1/8). Ligule a ciliolate membrane (3), or a ciliate membrane (1), or a fringe of hairs (9). Leaf-blades linear, or lanceolate (2); stiff (1), or firm (12).
    Inflorescences
    Inflorescence a panicle (1), or composed of racemes (12); exserted, or embraced at base by subtending leaf (1). Panicle open (1/1). Racemes single (1/12), or borne along a central axis (12/12); erect (4/12), or ascending (9/12), or spreading (1/12); unilateral (12/12); bearing few fertile spikelets (5/12), or many spikelets (7/12); bearing 1-2 fertile spikelets on each (1/2), or 6-8 fertile spikelets on each (1/2). Spikelet packing lax (12/12). Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong (9/9).
    Spikelets
    Spikelets comprising 2 fertile florets (4), or 3 fertile florets (11), or 4 fertile florets (12), or 5 fertile florets (9), or 6 fertile florets (4), or 7 fertile florets (3), or 8 fertile florets (1); with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 5-8.596-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes glabrous (4), or pubescent (9). Floret callus pubescent (10/10).
    Fertile
    Spikelets comprising 2 fertile florets (4), or 3 fertile florets (11), or 4 fertile florets (12), or 5 fertile florets (9), or 6 fertile florets (4), or 7 fertile florets (3), or 8 fertile florets (1); with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 5-8.596-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes glabrous (4), or pubescent (9). Floret callus pubescent (10/10).
    Glume
    Glumes persistent; shorter than spikelet; parallel to lemmas (10), or gaping (3). Lower glume linear (1), or lanceolate (12), or oblong (1), or ovate (1); 0.4-0.6673-0.9 length of upper glume; hyaline (1), or membranous (12); 1-keeled; 0 -veined (1), or 1 -veined (11), or 2 -veined (1), or 3 -veined (3), or 4-5 -veined (1). Lower glume lateral veins absent (10), or distinct (4). Lower glume surface smooth (7), or scabrous (6). Lower glume apex truncate (1/12), or obtuse (4/12), or acute (10/12); muticous, or mucronate (1). Upper glume linear (1), or lanceolate (10), or oblong (2), or ovate (2); 0.33-0.7077-0.9 length of adjacent fertile lemma; hyaline (1), or membranous (12); 1-keeled; 0 -veined (1), or 1 -veined (10), or 2 -veined (3), or 3 -veined (6), or 4-5 -veined (3), or 6-7 -veined (1). Upper glume surface smooth (7), or scabrous (6). Upper glume apex obtuse (3), or acute (12), or acuminate (1); muticous, or mucronate (1).
    Florets
    Fertile lemma lanceolate (11), or ovate (2); membranous; keeled; 3 -veined (5), or 4 -veined (4), or 5 -veined (12), or 6-7 -veined (1). Lemma midvein without distinctive roughness (12), or scaberulous (1). Lemma lateral veins obscure (1/1). Lemma surface smooth (6), or asperulous (7); glabrous (11), or pubescent (1), or pilose (1). Lemma margins eciliate (3), or ciliolate (2), or ciliate (3), or pubescent (5). Lemma apex entire (5), or dentate (8); 2 -fid (8/8); truncate (1/2), or obtuse (2/2), or acute (1/2); muticous (1), or mucronate (5), or awned (10); 1 -awned (10/10). Principal lemma awn apical (5), or from a sinus (8). Palea 1 length of lemma; 2 -veined (12/12). Palea keels smooth (7), or scaberulous (1), or scabrous (5); eciliate (10), or ciliolate (3). Palea surface glabrous (10), or pubescent (1), or pilose (2). Palea apex entire (1/8), or dentate (8/8); muticous (9), or with excurrent keel veins (1), or awned (3). Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; fleshy. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp (12/12); lanceolate (1/1).
    Cleistogene
    Cleistogenes present; in upper sheaths.
    Distribution
    Europe (2), or Temperate Asia, or Tropical Asia (1).

    Distribution

    Native to:

    Afghanistan, Albania, Altay, Amur, Austria, Bulgaria, Buryatiya, Central European Rus, China North-Central, China South-Central, China Southeast, Chita, Czechoslovakia, France, Greece, Hungary, Inner Mongolia, Irkutsk, Italy, Japan, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Manchuria, Mongolia, North Caucasus, Pakistan, Primorye, Qinghai, Romania, Sicilia, South European Russi, Spain, Switzerland, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Uzbekistan, West Himalaya, West Siberia, Xinjiang, Yakutskiya, Yugoslavia

    Cleistogenes Keng appears in other Kew resources:

    First published in Sinensia 5: 147 (1934)

    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 2018. 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 2018. 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