1. Family: Poaceae Barnhart
    1. Genus: Vietnamosasa T.Q.Nguyen
      1. Vietnamosasa ciliata (A.Camus) T.Q.Nguyen

        This species is accepted, and its native range is Indo-China.

    [GB]
    Habit
    Perennial. Rhizomes elongated; leptomorph. Culms woody. Culm-internodes terete. Lateral branches dendroid. Branch complement many. Leaf-sheaths striately veined; pubescent. Leaf-sheath oral hairs ciliate; 5-7 mm long. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 8-12 cm long; 8-10 mm wide; stiff; light green. Leaf-blade midrib conspicuous. Leaf-blade venation with 10 secondary veins; with distinct cross veins. Leaf-blade surface pilose; sparsely hairy; hairy abaxially. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.
    Inflorescences
    Synflorescence on a separate leafless culm. Inflorescence a panicle. Peduncle glabrous. Panicle open. Panicle axis glabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 6-9 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-4 mm long; eventually visible between lemmas; pubescent. Floret callus disarticulating transversely.
    Fertile
    Spikelets comprising 6-9 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-4 mm long; eventually visible between lemmas; pubescent. Floret callus disarticulating transversely.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 5 mm long; chartaceous; without keels. Lower glume apex acute. Upper glume ovate; 6-7 mm long; chartaceous; without keels. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 7-8 mm long; chartaceous; without keel; 11-15 -veined. Lemma inner surface pubescent. Palea keels ciliate. Palea apex truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3; ciliate. Anthers 6; 3.5-4 mm long. Stigmas 3.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    Asia-tropical: Indo-China.
    Reference
    Bambuseae. Lecomte 1996.

    Distribution

    Native to:

    Cambodia, Laos, Vietnam

    Vietnamosasa ciliata (A.Camus) T.Q.Nguyen appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hacker, J.B. [JBH 1587], Vietnam K000795360
    Hacker, J.B. [JBH 1588], Vietnam K000795361
    Dransfiled, S. [SD1459], Thailand K000795362

    First published in Bot. Zhurn. (Moscow & Leningrad) 75: 222 (1990)

    Accepted by

    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    • 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
    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    • H?, P.-H. (2000). Câyc? Vi?tnam. An Illustrated flora of Vietnam, ed. 2, 3: 1-1020. Pham-hoang Ho, Montréal.
    • 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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    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