1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus distichophyllus Griseb.

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

    [GB]
    Habit
    Perennial. Rootstock evident. Culms erect; 15-40 cm long. Culm-internodes distally pubescent. Leaves distichous. Leaf-sheaths longer than adjacent culm internode; pubescent. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs; 0.2-0.5 mm long. Leaf-blades involute; 2.6-3 cm long; 1.5 mm wide. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; oblong; 2.5-4 cm long; 0.6-1.6 cm wide. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis angular; pubescent; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Involucre composed of bristles; connate into a cup below; ovate; 3.5-6.5 mm long; base obconical; base pilose. Involucral bristles deciduous with the fertile spikelets; emerging irregularly from body of a burr; 35-50 in principal whorl; with longest bristle scarcely emergent; 2-3 mm long; flattened; rigid; retrorsely scaberulous; glabrous, or pubescent; spinose.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acuminate; 2.5-3.6 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acuminate; 2.5-3.6 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 1-1.9 mm long; 0.5 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 2.2-3.1 mm long; 0.75-0.9 length of spikelet; membranous; without keels; 3-5 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret ovate; 0.9 length of spikelet; membranous; 3 -veined; acute. Fertile lemma ovate; 2.5-3.6 mm long; coriaceous; much thinner on margins; without keel; 3-5 -veined. Lemma margins flat. Lemma apex acute. Palea coriaceous.
    Fruits
    Caryopsis with adherent pericarp; ovoid; 2 mm long.
    Distribution
    South America: Caribbean.
    Reference
    Paniceae. De Lisle.

    Images

    Distribution

    Cenchrus distichophyllus Griseb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Wright, C. [3475], Cuba K000643118
    Wright, C. [304], Cuba K000643119

    First published in Cat. Pl. Cub.: 234 (1866)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • 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
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.

    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 2019. 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 2019. 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