1. Family: Poaceae Barnhart
    1. Genus: Cephalostachyum Munro
      1. Cephalostachyum langbianense A.Chev. & A.Camus

        This species is accepted, and its native range is Vietnam.

    [GB]
    Habit
    Perennial. Rhizomes short; pachymorph. Culms scandent; woody. Culm-internodes terete; thin-walled; 10-20 cm long; distally pubescent. Lateral branches dendroid. Culm-sheaths deciduous. Culm-sheath blade lanceolate; erect; 8-10 cm long. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 20-40 cm long; 40-65 mm wide; stiff; glandular. Leaf-blade venation with 24-26 secondary veins. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Synflorescence bractiferous; clustered at the nodes; in globose clusters; 3-4 cm long; dense; 2-10 cm between clusters; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 18-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 18-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes several; 3-4 empty glumes; persistent; shorter than spikelet. Lower glume ovate; 3-4 mm long. Lower glume surface pubescent. Upper glume ovate; 10 mm long; chartaceous; without keels. Upper glume surface pubescent.
    Florets
    Fertile lemma ovate; 12-15 mm long; chartaceous; without keel. Lemma margins convolute; ciliate. Lemma apex acuminate; mucronate. Palea lanceolate, or ovate; 8-10 mm long; chartaceous; 2-keeled but the uppermost without keels. Palea keels approximate; ciliate. Palea apex dentate; 2 -fid. Rhachilla extension 7-8 mm long. Apical sterile florets 1 in number; barren; lanceolate.
    Flowers
    Lodicules 3; veined; ciliate. Anthers 6; 5 mm long; anther tip with extended connective and pubescent. Filaments free. Stigmas 3. Ovary with a steeple-like appendage; glabrous.
    Fruits
    Caryopsis with free brittle pericarp.
    Distribution
    Asia-tropical: Indo-China.
    Reference
    Bambuseae. Lecomte 1996.

    Distribution

    Native to:

    Vietnam

    Cephalostachyum langbianense A.Chev. & A.Camus appears in other Kew resources:

    First published in Bull. Mus. Natl. Hist. Nat. 27: 452 (1921)

    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.

    Literature

    Kew Backbone Distributions
    • Camus, E.G. & Camus, A. in H. Lecomte (1922). Flore Générale de l'indo-Chine 1(3): 193-336.

    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