1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne clementis Merr.

        This species is accepted, and its native range is W. Malesia.

    [GB]
    Habit
    Perennial; cushion forming. Culms erect; 20-45 cm long; rooting from lower nodes. Lateral branches ample. Leaf-sheaths 1.5-2 cm long; longer than adjacent culm internode; glabrous on surface, or pilose; with tubercle-based hairs; outer margin hairy. Ligule a fringe of hairs. Leaf-blades lanceolate; 2-4 cm long; 4-9 mm wide; stiff. Leaf-blade surface ribbed; glabrous, or pubescent. Leaf-blade margins ciliate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 6 cm long; 3 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 2.4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 0.2 mm long.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 2.4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 0.2 mm long.
    Glume
    Glumes deciduous; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 2.2 mm long; 0.9 length of spikelet; membranous; without keels; 5 -veined. Lower glume surface glabrous, or puberulous; hairy above. Lower glume apex acute. Upper glume ovate; 2.4 mm long; 1.7 length of adjacent fertile lemma; membranous; without keels; 5 -veined. Upper glume surface pubescent. Upper glume apex acute.
    Florets
    Fertile florets with the lowest dissimilar. Lowest fertile lemma 1.1-1.2 length of adjacent lemma. Fertile lemma ovate; 1.4 mm long; coriaceous; yellow; without keel. Lemma surface puberulous. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3; 0.8 mm long; yellow.
    Fruits
    Caryopsis with adherent pericarp; 1 mm long.
    Distribution
    Asia-tropical: Malesia.
    Reference
    Isachneae. Gilliland 1993.

    Images

    Distribution

    Native to:

    Borneo, Malaya, Sumatera

    Isachne clementis Merr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jul 1, 2010 Clemens, M.S. [10503], Sabah K000290190 isotype
    Jul 1, 2010 Merrill, E.D. [6975], Philippines K000290206 isotype
    Ridley, H.N. [15932], Peninsular Malaysia Isachne saxicola K000290171 isotype
    Robinson, H.C. [s.n.], Peninsular Malaysia Isachne saxicola K000290183 Unknown type material

    First published in J. Straits Branch Roy. Asiat. Soc. 76: 76 (1917)

    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
    • Masamune, G. (1942). Enumeratio phanerogamarum Bornearum: 1-739. Taihoku, Formosa.

    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