1. Family: Poaceae Barnhart
    1. Pleioblastus Nakai

      1. This genus is accepted, and its native range is Central & S. China, Japan to Nansei-shoto.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes elongated; leptomorph. Culms erect (14/14); 20-364.4-800 cm long; woody; without nodal roots (1/1), or with aerial roots from the nodes (1/1). Culm-internodes terete. Culm-nodes swollen (5/5); with distinct supra-nodal ridge (4/4). Lateral branches suffrutescent (1), or dendroid (15). Branch complement one (1/10), or two (1/10), or three (2/10), or several (8/10); with subequal branches (1/2), or 1 branch dominant (1/2). Culm-sheaths persistent (2/7), or tardily deciduous (3/7), or deciduous (2/7); without auricles (8/14), or auriculate (7/14). Culm-sheath blade linear (4/13), or lanceolate (9/13), or ovate (1/13), or triangular (3/13); narrower than sheath (1/1). Leaf-sheath auricles absent (11), or erect (3), or falcate (5). Ligule an eciliate membrane (15), or a ciliolate membrane (3). Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades persistent (13), or deciduous at the ligule (3); linear (1), or lanceolate (14), or elliptic (3), or ovate (1). Leaf-blade venation without cross veins (12), or with distinct cross veins (4).
    Inflorescences
    Synflorescence simple (3/5), or compound (2/5); fasciculate (1/1). Inflorescence a panicle (1/5), or composed of racemes (1/5), or comprising only a few spikelets (3/5); terminal (3/5), or terminal and axillary (2/5); subtended by an unspecialized leaf-sheath (4/5), or a spatheole (1/5); exserted (3/5), or embraced at base by subtending leaf (2/5). Panicle open (1/1). Racemes single (1/1); bearing 3-10 fertile spikelets on each (1/1). Spikelets solitary (5/5). Fertile spikelets pedicelled (5/5).
    Spikelets
    Spikelets comprising 4 fertile florets (2/5), or 5 fertile florets (3/5), or 6 fertile florets (4/5), or 7 fertile florets (3/5), or 8 fertile florets (2/5), or 9-12 fertile florets (1/5); with diminished florets at the apex (5/5). Spikelets linear (5/5); laterally compressed (5/5); 24.9-38.68-60 mm long; breaking up at maturity (5/5); disarticulating below each fertile floret (5/5). Rhachilla internodes glabrous (4/5), or pubescent (1/5).
    Fertile
    Spikelets comprising 4 fertile florets (2/5), or 5 fertile florets (3/5), or 6 fertile florets (4/5), or 7 fertile florets (3/5), or 8 fertile florets (2/5), or 9-12 fertile florets (1/5); with diminished florets at the apex (5/5). Spikelets linear (5/5); laterally compressed (5/5); 24.9-38.68-60 mm long; breaking up at maturity (5/5); disarticulating below each fertile floret (5/5). Rhachilla internodes glabrous (4/5), or pubescent (1/5).
    Glume
    Glumes two (2/5), or several (3/5); persistent (5/5); shorter than spikelet (5/5). Lower glume lanceolate (4/4); chartaceous (4/4); without keels (4/4). Lower glume apex acute (3/3). Upper glume lanceolate (2/3), or ovate (1/3); chartaceous (3/3); without keels (3/3). Upper glume apex acute (3/3).
    Florets
    Fertile lemma lanceolate (2/5), or ovate (4/5); chartaceous (5/5); without keel (5/5); 5-6 -veined (1/4), or 7 -veined (2/4), or 8 -veined (1/4), or 9 -veined (3/4), or 10-11 -veined (1/4). Lemma margins eciliate (5/5), or ciliolate (1/5). Lemma apex acute (2/5), or acuminate (3/5); muticous (5/5), or mucronate (1/5). Palea 1 length of lemma; 2 -veined (1/1). Palea keels eciliate (4/5), or ciliate (1/5). Palea surface glabrous (3/5), or pubescent (2/5). Apical sterile florets resembling fertile though underdeveloped (5/5).
    Flowers
    Lodicules 3 (5/5); glabrous (4/5), or ciliate (1/5). Anthers 3 (5/5). Stigmas 3 (5/5). Ovary glabrous (1/1).
    Fruits
    Caryopsis with adherent pericarp (5/5); apex unappendaged (5/5).
    Distribution
    Temperate Asia, or Australasia (1), or Pacific (1).

    Distribution

    Native to:

    China North-Central, China South-Central, China Southeast, Japan, Nansei-shoto

    Introduced into:

    Brazil Southeast, Colombia, Cook Is., Czechoslovakia, District of Columbia, East Himalaya, Georgia, Great Britain, Korea, Maryland, New Zealand North, New Zealand South, Norfolk Is., Puerto Rico, Tennessee, Transcaucasus, Virginia

    Pleioblastus Nakai appears in other Kew resources:

    First published in J. Arnold Arbor. 6: 145 (1925)

    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