1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum chloroleucum Griseb.

        This species is accepted, and its native range is NW. Argentina.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms erect; 40-70 cm long; 2-3 mm diam. Culm-internodes 3.4-10 cm long; distally glabrous, or pubescent. Culm-nodes brown; pubescent. Leaf-sheaths 5-11.5 cm long; longer than adjacent culm internode; glabrous on surface, or pubescent. Ligule a ciliate membrane; 1.5-2.5 mm long. Collar pubescent. Leaf-blades flat, or involute; 15-30 cm long; 1-4 mm wide. Leaf-blade surface pubescent; hairy on both sides. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; effuse; 10-33 cm long; 4-14 cm wide. Primary panicle branches 1 -nate. Panicle axis pubescent. Panicle branches pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels clavate; 1-6 mm long; pubescent.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 3.5-4.9 mm long; 1.2-1.7 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 3.5-4.9 mm long; 1.2-1.7 mm wide; falling entire.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 2.5-4 mm long; 0.5-0.66 length of spikelet; membranous; without keels; 5-7 -veined. Lower glume surface pubescent; hairy above. Lower glume apex acute. Upper glume ovate; 3.4-4 mm long; 1 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume primary vein pubescent. Upper glume surface pubescent; hairy above. Upper glume apex acuminate.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 3.6-4 mm long; 1 length of spikelet; membranous; 5-7 -veined; pubescent; hairy above; pubescent on margins; fringed below; acuminate. Palea of lower sterile floret 3-3.8 mm long; pubescent; adorned on flanks. Fertile lemma elliptic; dorsally compressed; 2.5-3 mm long; 1.2-1.6 mm wide; indurate; pallid; shiny; without keel; 7 -veined. Lemma margins involute; ciliate; hairy at base. Palea involute; indurate.
    Flowers
    Anthers 3; 1.9-2.2 mm long.
    Fruits
    Caryopsis with adherent pericarp; oblong; 2.2-2.3 mm long. Embryo 0.5 length of caryopsis. Hilum elliptic.
    Distribution
    South America: southern South America.
    Reference
    Paniceae. Zuloaga 1996.

    Images

    Distribution

    Native to:

    Argentina Northwest

    Panicum chloroleucum Griseb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hieronymus [277], Argentina K000309318

    First published in Abh. Königl. Ges. Wiss. Göttingen 19: 262 (1874)

    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
    • 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