1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum pedersenii Zuloaga

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

    [GB]
    Habit
    Perennial. Rhizomes elongated; scaly; hairy. Culms 70-100 cm long. Culm-internodes 5.5-12 cm long. Culm-nodes glabrous. Leaf-sheaths 5-11 cm long; glabrous on surface, or pilose; outer margin glabrous, or hairy. Ligule a ciliate membrane; 1.7-2.4 mm long. Collar glabrous, or pubescent. Leaf-blades lanceolate; 11-27 cm long; 4-7 mm wide. Leaf-blade midrib conspicuous. Leaf-blade surface pubescent; hairy adaxially. Leaf-blade margins scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; effuse; 8-23 cm long; 4-15 cm wide. Panicle axis scabrous. Panicle branches glabrous in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1.5-7 mm long; scabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 3-4 mm long; 0.9-1.4 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 3-4 mm long; 0.9-1.4 mm wide; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1.3-1.7 mm long; 0.33 length of spikelet; membranous; without keels; 5-7 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 9-11 -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; 9-11 -veined; acute. Fertile lemma elliptic; dorsally compressed; 2.5-2.9 mm long; indurate; yellow; shiny; without keel. Lemma margins involute. Palea involute; indurate.
    Flowers
    Anthers 1.8-2.3 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: southern South America.
    Reference
    Paniceae. Zuloaga 1995.

    Distribution

    Native to:

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

    Panicum pedersenii Zuloaga appears in other Kew resources:

    First published in Hickenia 1: 148 (1978)

    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

    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