1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne distichophylla Munro ex Hillebr.

        This species is accepted, and its native range is Hawaiian Islands, Cook Islands.

    [GB]
    Habit
    Perennial. Culms erect; 60-100 cm long; rooting from lower nodes. Culm-nodes purple. Leaves distichous. Leaf-sheaths 2 cm long. Ligule a fringe of hairs; 1.5-2 mm long. Leaf-blades lanceolate; 5-15 cm long; 5-17 mm wide; coriaceous; stiff. Leaf-blade margins cartilaginous; crenate. Leaf-blade apex acute.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or ovate; (5-)10-20 cm long; 4-10 cm wide. Primary panicle branches spreading. Panicle branches stiff. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 1.5-1.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 1.5-1.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.
    Glume
    Glumes deciduous; similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate, or orbicular; 1.5-1.8 mm long; 1 length of upper glume; 1 length of spikelet; membranous; without keels; 9-11 -veined. Lower glume surface glabrous, or hispid. Lower glume apex acute. Upper glume ovate, or orbicular; 1.5-1.8 mm long; membranous; without keels; 7-11 -veined. Upper glume surface glabrous, or hispid. Upper glume apex acute.
    Florets
    Fertile lemma ovate, or orbicular; 1.5-1.8 mm long; coriaceous; without keel. Lemma surface pubescent; hairy at base. Lemma margins involute; pubescent. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; ovoid; 1 mm long.
    Distribution
    Pacific: south-central and north-central.
    Reference
    Isachneae. Wagner 1993.

    Images

    Distribution

    Native to:

    Cook Is., Hawaii

    Isachne distichophylla Munro ex Hillebr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Macrae, J. [s.n.], Hawaii K001056301
    Macrae, J. [s.n.], Hawaii K001081841
    Hillebrand, W.B. [504], Hawaii K001056303
    Diell, J. [42], Hawaii K001056305
    s.coll. [s.n.], Hawaii K001056304
    Haines, [Captn] [62], Hawaii K001056302

    First published in Fl. Hawaiian Isl.: 504 (1888)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • 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
    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.

    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