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  1. Family: Poaceae Barnhart
    1. Genus: Polypogon Desf.
      1. Polypogon exasperatus (Trin.) Renvoize

        This species is accepted, and its native range is W. & S. South America and S. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes absent, or elongated. Culms erect, or geniculately ascending; (7-)20-50 cm long. Leaf-sheaths smooth. Ligule an eciliate membrane; 0.5-1.5 mm long; truncate, or obtuse. Leaf-blades 5-15 cm long; 2-5 mm wide. Leaf-blade surface smooth, or scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; lanceolate, or elliptic; 7-25 cm long. Primary panicle branches whorled at most nodes; bearing spikelets almost to the base. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 2-4 mm long; scabrous.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 2.8-3.5 mm long; falling entire; deciduous with the pedicel. Spikelet callus pubescent. Floret callus glabrous.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 2.8-3.5 mm long; falling entire; deciduous with the pedicel. Spikelet callus pubescent. Floret callus glabrous.
    Glume
    Glumes similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 2.8-3.5 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex acute; muticous. Upper glume lanceolate; 2.8-3.5 mm long; 2-3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume surface scabrous. Upper glume apex acute; muticous.
    Florets
    Fertile lemma ovate; 1.1-1.5 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 4 -fid; truncate; awned; 1 -awned. Principal lemma awn subapical; 1.2-3.5 mm long overall. Palea 0.4-0.7 length of lemma; hyaline.
    Flowers
    Lodicules 2; membranous. Anthers 3; 0.7-0.9 mm long.
    Fruits
    Caryopsis with adherent pericarp; oblong.
    Distribution
    South America: northern South America, western South America, Brazil, and southern South America.
    Reference
    Aveneae. Fl Pat.
    [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

    Images

    Distribution

    Native to:

    Argentina Northwest, Argentina South, Bolivia, Brazil South, Chile Central, Chile South, Colombia, Ecuador, Peru

    Accepted Infraspecifics

    Synonyms

    Other Data

    Polypogon exasperatus (Trin.) Renvoize appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Lechler, W. [758], Chile K000308485

    Bibliography

    First published in Gramin. Bolivia: 235 (1998)

    Accepted by

    • Idárraga-Piedrahita, A., Ortiz, R.D.C., Callejas Posada, R. & Merello, M. (eds.) (2011). Flora de Antioquia: Catálogo de las Plantas Vasculares 2: 1-939. Universidad de Antioquia, Medellín.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. 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/.
    • Idárraga-Piedrahita, A., Ortiz, R.D.C., Callejas Posada, R. & Merello, M. (eds.) (2011). Flora de Antioquia: Catálogo de las Plantas Vasculares 2: 1-939. Universidad de Antioquia, Medellín.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • 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.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • 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 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