1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus occidentalis (Chase) Morrone

        This species is accepted, and its native range is Venezuela to Peru.

    [CPLC]

    Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

    Distribution
    Nativa en Colombia.
    Habit
    Hierba
    Conservation
    No Evaluada
    [GB]
    Habit
    Perennial. Culms decumbent; robust; 200-300 cm long; rooting from lower nodes. Ligule a fringe of hairs. Leaf-blades 20-60 cm long; 10-20 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Panicle spiciform; linear; flexuous; 8-12 cm long; 1-1.2 cm wide. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis angular; stellately pubescent (surrounding scars); bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Involucre composed of bristles; 8-10 mm long; base truncate. Involucral bristles deciduous with the fertile spikelets; 10-15 in principal whorl; with one conspicuously longer bristle; 15-25 mm long; terete; flexible; antrorsely scaberulous; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-4.8 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-4.8 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.33 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 0.75 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret oblong; 1 length of spikelet; membranous; 7 -veined; acute. Fertile lemma lanceolate; 4-4.5 mm long; coriaceous; without keel. Lemma margins flat. Lemma apex acute. Palea 1 length of lemma; coriaceous.
    Flowers
    Lodicules absent. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: western South America.
    Reference
    Paniceae. Turpe 1994.

    Images

    Distribution

    Native to:

    Colombia, Ecuador, Peru, Venezuela

    Introduced into:

    Galápagos, Puerto Rico

    Cenchrus occidentalis (Chase) Morrone appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Spruce, R. [6426], Ecuador Pennisetum occidentale K000201722

    First published in Ann. Bot. (Oxford) 106: 128 (2010)

    Literature

    Kew Backbone Distributions
    • Jaramillo Díaz, P. & Guézou, A. (2017). CDF Checklist of Galapagos Vascular Plants - FCD Lista de especies de Plantas Vasculares de Galápagos http://www.darwinfoundation.org/datazone/checklists/vascular-plants/.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    Sources

    Catálogo de Plantas y Líquenes de Colombia
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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