1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus tetragonus Bor

        This species is accepted, and its native range is Uttarakhand to India, W. Indo-China to Peninsula Malaysia.

    [GB]
    Habit
    Annual. Culms 25-55 cm long. Ligule a fringe of hairs. Leaf-blades linear, or lanceolate; 5-15 cm long; 4-9 mm wide; flaccid. Leaf-blade surface scabrous; rough on both sides. Leaf-blade margins scabrous; tuberculate-ciliate; hairy at base.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; effuse; 10-25 cm long; 4-8 cm wide. Primary panicle branches whorled at most nodes; rebranched above middle; 2-5 cm long. Panicle branches smooth, or scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-1.5 mm long; scaberulous.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.75 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.75 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; dissimilar; reaching apex of florets. Lower glume lanceolate; 1 mm long; 0.5-0.66 length of upper glume; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume surface scabrous; rough above. Lower glume apex acute. Upper glume elliptic; 1.75 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface scabrous; rough above. Upper glume apex acute.
    Florets
    Fertile lemma elliptic; 1.75 mm long; membranous; without keel; 1 -veined. Lemma apex obtuse. Palea 1-1.5 mm long; 2 -veined. Palea keels approximate.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with free soft pericarp; ellipsoid; quadrangular; 0.6 mm long.
    Distribution
    Asia-tropical: India and Indo-China.
    Reference
    Eragrostideae. Bor 1993.

    Images

    Distribution

    Native to:

    India, Malaya, Myanmar, Thailand, West Himalaya

    Sporobolus tetragonus Bor appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1948 Kerr, A.F.G. [19762], Thailand K000290400 Unknown type material
    Jan 1, 1948 Kerr, A.F.G. [19762], Thailand K000290399 Unknown type material
    Sorensen, Th. [4598], Thailand K000682639
    Sorensen, Th. [5179], Thailand K000682641
    Sorensen, Th. [5039], Thailand K000648139
    Sorensen, Th. [4720], Thailand K000648140
    Smitinand, T. [2011], Thailand K000682640

    First published in Kew Bull. 4: 251 (1949)

    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.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    Literature

    Kew Backbone Distributions
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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