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

        This species is accepted, and its native range is Central & E. U.S.A. to Mexico, Hispaniola to Puerto Rico.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Glands annular. Culms 50-140 cm long; 0.7-3 mm diam. Culm-internodes 6-15 cm long; glandular (below nodes); distally hirsute. Culm-nodes bearded. Lateral branches sparse. Leaves heterophyllous with a basal winter rosette. Leaf-sheaths viscid; glabrous on surface, or pilose; outer margin glabrous, or hairy. Ligule a ciliate membrane; 1 mm long. Leaf-blade base broadly rounded. Leaf-blades lanceolate; 6-15 cm long; 8-13 mm wide; 8-15 mm wide in winter rosette. Leaf-blade margins tuberculate-ciliate; hairy at base. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or ovate; 7-12 cm long; 5-10 cm wide. Primary panicle branches ascending. Panicle axis glabrous, or pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate, or orbicular; dorsally compressed; obtuse; 1.8-2.2 mm long; 1-1.2 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate, or orbicular; dorsally compressed; obtuse; 1.8-2.2 mm long; 1-1.2 mm wide; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.4-0.5 mm long; 0.25 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; 1.8-2.2 mm long; indurate; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: north-central USA, northeast USA, south-central USA, southeast USA, and Mexico.
    Reference
    Paniceae. Man Gr US 1994.

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Connecticut, Delaware, Dominican Republic, Florida, Georgia, Haiti, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Michigan, Minnesota, Mississippi, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Puerto Rico, South Carolina, Tennessee, Texas, Virginia, Wisconsin

    Panicum ovale Elliott appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nash, G. V. [147], Florida K000674501
    Baldwin, W. [485], Louisiana K000674502
    Fernald, M. L. [6499], Virginia Panicum mundum K000674505 Unknown type material
    Smith, L. B. [619], Virginia Panicum mundum K000674504

    First published in Sketch Bot. S. Carolina 1: 123 (1816)

    Accepted by

    • Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.

    Literature

    Kew Backbone Distributions
    • Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • 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.
    • Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
    • 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