1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum schwackeanum Mez

        This species is accepted, and its native range is Costa Rica to S. Tropical America.

    [GB]
    Habit
    Perennial. Culms decumbent; 10-70 cm long; 1 mm diam.; rooting from lower nodes. Culm-nodes brown. Lateral branches ample. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.3-0.7 mm long; brown. Leaf-blade base cordate. Leaf-blades lanceolate; 2-6 cm long; 4-11 mm wide. Leaf-blade surface glabrous. Leaf-blade margins glabrous, or ciliate; hairy at base.
    Inflorescences
    Inflorescence a panicle. Peduncle 5-10 cm long; pubescent above. Panicle open; ovate; 5-10 cm long; 5-9 cm wide. Panicle branches glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels flexuous; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate, or obovate; dorsally compressed; 1.7-2 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate, or obovate; dorsally compressed; 1.7-2 mm long; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma; gaping. Lower glume ovate; 1.2-1.5 mm long; 0.75 length of spikelet; membranous; without keels; 3-4 -veined. Lower glume apex acute. Upper glume ovate; 1.7-2 mm long; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1.7-2 mm long; 1 length of spikelet; membranous; 4-5 -veined; without midvein, or with evident midvein; acute. Palea of lower sterile floret 1 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.3-1.7 mm long; indurate; shiny; without keel. Lemma margins involute. Palea involute; indurate.
    Flowers
    Anthers 3; 1 mm long.
    Distribution
    South America: Mesoamericana, northern South America, western South America, Brazil, and southern South America.
    Reference
    Paniceae. Fl Costa Rica 1994.
    [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 - 2000 m.
    Habit
    Hierba
    Conservation
    No Evaluada

    Images

    Distribution

    Native to:

    Argentina Northeast, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, French Guiana, Guyana, Paraguay, Suriname, Uruguay, Venezuela

    Panicum schwackeanum Mez appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Clayton, W.D. [4559], Brazil K001078838
    Clayton, W.D. [4642], Brazil K001078840
    Clayton, W.D. [4251], Brazil K001078813
    Lindeman, J.C. [875], Brazil K001078810
    Tweedie [s.n.] K000309317 syntype
    Hassler, E. [9043], Paraguay K000309258 isosyntype
    Irwin, H.S. [27745], Brazil K001078808
    Riedel [1961], Brazil K000309248
    Eiten, G. [3513], Brazil K001078841
    Davidse, G. [10993], Brazil K001078809
    Davidse, G. [12162], Brazil K001078819
    Riedel, L. [s.n.], Brazil K001078834
    Smith, L.B. [11263], Brazil K001078826
    Smith, L.B. [1879], Brazil K001078839
    Burchell, W.J. [4200], Brazil K001078825
    Burchell, W.J. [1974], Brazil K001078828
    Burchell, W.J. [2085], Brazil K001078829
    Burchell, W.J. [3802], Brazil K001078830
    Burchell, W.J. [2639], Brazil K001078824
    Dusén, P. [7427], Brazil K001078811
    Dusén, P. [14522], Brazil K001078812
    Hitchcock, A.S. [16817] K000309247
    Hoehne, W. [c.n.], Brazil K001078842
    Sellow [s.n.], Brazil K001078835
    Sellow [s.n.], Brazil K001078836
    Valls, J.F.M. [11674], Brazil K001078823
    Hopkins, M.J.G. [860], Brazil K001078818
    Araújo, A.C. [167], Brazil K001078827
    Renschen, S. [II 307], Minas Gerais K000309259 isosyntype
    Dombrowski, L.T. [2763], Brazil K001078816
    Glaziou, A.F.M. [22324], Brazil K001078807
    Hatschbach, G.G. [38052], Brazil K001078820
    Hatschbach, G.G. [36491], Brazil K001078822
    Hatschbach, G.G. [15945], Brazil K001078814
    Hatschbach, G.G. [13817], Brazil K001078815
    Spruce, R. [2207], Brazil K001078831
    Spruce, R. [1381], Brazil K001078832
    Spruce, R. [2207], Brazil K001078833
    Skvortzov, B.V. [215], Brazil K001078837

    First published in Beibl. Bot. Jahrb. Syst. 125: 1 (1921)

    Accepted by

    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • 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.
    • 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.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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.
    • 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.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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