1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum caaguazuense Henrard

        This species is accepted, and its native range is Central Brazil to NE. Argentina.

    [GB]
    Habit
    Perennial. Rhizomes short. Culms geniculately ascending; 50-100 cm long; rooting from lower nodes. Culm-internodes thin-walled; 1.5-7.5 cm long; distally glabrous. Culm-nodes brown; glabrous. Leaf-sheaths 2-5.6 cm long; mostly shorter than adjacent culm internode; glabrous on surface. Ligule a ciliate membrane; 0.1-0.3 mm long. Leaf-blade base broadly rounded. Leaf-blades lanceolate; 5-11 cm long; 4-7 mm wide. Leaf-blade midrib indistinct. Leaf-blade surface glabrous.
    Inflorescences
    Inflorescence a panicle; embraced at base by subtending leaf. Peduncle glabrous. Panicle open; ovate; 2.5-8 cm long. Panicle axis scaberulous. Panicle branches glabrous in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 10-35 mm long; smooth, or scaberulous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.7-3 mm long; 0.8-1.3 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.7-3 mm long; 0.8-1.3 mm wide; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 2.2-2.7 mm long; 0.75-0.8 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 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 length of spikelet; membranous; 5 -veined; acute. Palea of lower sterile floret 1.9-2.1 mm long. Fertile lemma ovate; dorsally compressed; 1.8-2.1 mm long; indurate; pallid; shiny; without keel. Lemma surface papillose. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
    Flowers
    Anthers 1.3 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: Brazil and southern South America.
    Reference
    Paniceae. Fl Paraguay 1995.

    Images

    Distribution

    Native to:

    Argentina Northeast, Brazil Southeast, Brazil West-Central, Paraguay

    Panicum caaguazuense Henrard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Balansa, B. [22], Paraguay K000309249

    First published in Meded. Rijks-Herb. 47: 2 (1922)

    Accepted by

    • 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.

    Literature

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

    Sources

    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