1. Family: Poaceae Barnhart
    1. Genus: Leptothrium Kunth
      1. Leptothrium rigidum Kunth

        This species is accepted, and its native range is Greater Antilles, Colombia to Venezuela.

    [GB]
    Habit
    Perennial; short-lived; caespitose. Cataphylls evident. Culms geniculately ascending; 15-50 cm long; wiry. Leaves cauline. Leaf-sheaths loose. Leaf-sheath auricles erect. Ligule a fringe of hairs. Leaf-blades linear to lanceolate; flat, or involute; 15-30 cm long; 0.5-2 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes numerous; borne along a central axis; in a multilateral false spike; spreading; cuneate; bearing few fertile spikelets; bearing 1 fertile spikelets on each, or 2 fertile spikelets on each. Central inflorescence axis 5-10 cm long. Rhachis obsolete; deciduous from axis. Raceme-bases cuneate; 1.5-2.5 mm long; pilose; hairy on margins. Spikelets solitary, or in pairs. Fertile spikelets sessile; 1-2 in the cluster; subequal, or the upper smaller (lower glume of one spikelet usually enlarged).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear to lanceolate; laterally compressed; 6-7 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear to lanceolate; laterally compressed; 6-7 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma. Lower glume linear to lanceolate; 4-7 mm long; 1-1.3 length of upper glume; coriaceous; without keels; (1-)3 -veined. Lower glume surface convex, or flat; smooth, or scabrous. Lower glume margins ciliolate. Lower glume apex attenuate to caudate. Upper glume linear to lanceolate; 4-6 mm long; 3-4 length of adjacent fertile lemma; coriaceous; without keels; 3 -veined. Upper glume primary vein ciliate. Upper glume surface scabrous. Upper glume apex caudate, or acuminate.
    Florets
    Fertile lemma ovate; 1-1.5 mm long; hyaline; without keel; 1 -veined. Lemma margins ciliolate; hairy above. Lemma apex obtuse. Palea 0.6-0.8 length of lemma; hyaline; 0 -veined; without keels.
    Flowers
    Anthers 3; 0.6-0.8 mm long.
    Fruits
    Caryopsis with adherent pericarp; fusiform; laterally compressed; biconvex; 2 mm long. Embryo 0.5 length of caryopsis.
    Distribution
    South America: Caribbean, northern South America, and western South America.
    Reference
    Cynodonteae. TB.
    [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; Alt. 0 - 500 m.; Llanura del Caribe.
    Habit
    Hierba
    Conservation
    No Evaluada

    Distribution

    Native to:

    Colombia, Dominican Republic, Haiti, Jamaica, Venezuela

    Leptothrium rigidum Kunth appears in other Kew resources:

    First published in Révis. Gramin. 1: 156 (1829)

    Accepted by

    • 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.
    • 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.
    • 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.

    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

    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