1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum plenum Hitchc. & Chase

        This species is accepted, and its native range is Mexico.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes elongated. Culms geniculately ascending; 50-100 cm long. Culm-internodes elliptical in section. Culm-nodes glabrous. Leaf-sheaths mostly shorter than adjacent culm internode; keeled; glabrous on surface, or pubescent. Ligule a ciliolate membrane; 0.5-2 mm long. Leaf-blades 20-35 cm long; 2-17 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 12-50 cm long. Primary panicle branches spreading; not whorled, or whorled at lower nodes. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.2-4 mm long; scabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.5-3.5 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; 2.5-3.5 mm long; 1.2 mm wide; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.33-0.5 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma elliptic; dorsally compressed; 2.9-3 mm long; indurate; pallid; without keel. Lemma surface rugulose. Lemma margins involute. Lemma apex acute; pubescent. Palea involute; indurate.
    Distribution
    North America: southwest USA, south-central USA, and Mexico.
    Reference
    Paniceae. Fl N Amer 2007.

    Images

    Distribution

    Native to:

    Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest

    Introduced into:

    India, Pakistan

    Panicum plenum Hitchc. & Chase appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Metcalfe, O. B. [739], New Mexico K000674448
    Metcalfe, O. B. [739], New Mexico K000674449

    First published in Contr. U.S. Natl. Herb. 15: 80 (1910)

    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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    Literature

    Kew Backbone Distributions
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    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