1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum scabriusculum Elliott

        This species is accepted, and its native range is E. U.S.A. to Texas, SE. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Culms 60-150 cm long; 2-3 mm diam.; 6-7 -noded. Culm-internodes distally glabrous. Culm-nodes glabrous. Lateral branches sparse. Leaves heterophyllous with a basal winter rosette. Leaf-sheaths without exudate; glabrous on surface, or hirsute; with tubercle-based hairs. Ligule absent. Leaf-blade base cordate. Leaf-blades lanceolate; 6-13 cm long; 8-15 mm wide; 5-9 mm wide in winter rosette. Leaf-blade surface glabrous, or pilose; hairy abaxially. Leaf-blade margins ciliate; hairy at base. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or ovate; 8-13 cm long; 6-10 cm wide; bearing few spikelets. Primary panicle branches ascending. Panicle axis glabrous. Panicle branches scabrous; pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 2.2-2.8 mm long; 1.2 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 2.2-2.8 mm long; 1.2 mm wide; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.8-1 mm long; 0.33 length of spikelet; membranous; without keels. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume lateral veins prominent. Upper glume surface pubescent. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5 -veined; prominently veined; pubescent; obtuse. Fertile lemma elliptic; dorsally compressed; 2-2.5 mm long; indurate; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: northeast USA, south-central USA, and southeast USA.
    Reference
    Paniceae. Man Gr US 1994.

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Brazil Southeast, Connecticut, Delaware, District of Columbia, Florida, Georgia, Louisiana, Maryland, Masachusettes, Mississippi, New Jersey, New York, North Carolina, Pennsylvania, Rhode I., South Carolina, Tennessee, Texas, Virginia

    Panicum scabriusculum Elliott appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nealley, G. C. [s.n.], Texas K000674485

    First published in Sketch Bot. S. Carolina 1: 121 (1816)

    Accepted by

    • 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/.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    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