1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum orinocanum Luces

        This species is accepted, and its native range is Colombia to Venezuela and N. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Culms erect; slender; 30-40 cm long. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths mostly shorter than adjacent culm internode; striately veined; glabrous on surface. Ligule an eciliate membrane; 0.3 mm long; ciliate from base of abaxial surface. Leaf-blades flat, or involute; 2-10.5 cm long; 1-2 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 3-5 cm long. Panicle branches capillary; flexuous; glabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-2 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-2 mm long; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 7 -veined; acute. Fertile lemma elliptic; dorsally compressed; 1.5 mm long; indurate; pallid; without keel. Lemma surface puberulous. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: northern South America.
    Reference
    Paniceae. Swallen 1995.
    [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.; Amazonia, Guayana y Serranía de La Macarena, Orinoquia.
    Habit
    Hierba
    Conservation
    No Evaluada

    Images

    Distribution

    Native to:

    Brazil North, Colombia, Venezuela

    Panicum orinocanum Luces appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1990 Williams, L. [13090], Venezuela K000309308 isotype

    First published in J. Washington Acad. Sci. 32: 164 (1942)

    Accepted by

    • 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
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • 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

    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