1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum ensifolium Baldwin ex Elliott

        This species is accepted, and its native range is New Jersey to Central America, Cuba.

    [GB]
    Habit
    Perennial. Culms erect, or geniculately ascending; 20-40 cm long. Lateral branches sparse, or ample. Leaves heterophyllous with a basal winter rosette. Ligule absent. Leaf-blades lanceolate; 1-3 cm long; 1.5-3 mm wide. Leaf-blade surface puberulous; hairy abaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong; 1.5-4 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 1.3-1.5 mm long; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 1.3-1.5 mm long; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.2 length of spikelet; membranous; without keels. Lower glume apex obtuse. Upper glume orbicular; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface glabrous, or puberulous. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 7 -veined; glabrous, or puberulous. Fertile lemma elliptic; dorsally compressed; 1.3-1.5 mm long; indurate; without keel. Lemma margins involute. Palea involute; indurate.
    Distribution
    North America: northeast USA, southeast USA, and Mexico. South America: Mesoamericana and Caribbean.
    Reference
    Paniceae. Man US Grass 2004.

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Belize, Cuba, Delaware, District of Columbia, Florida, Georgia, Honduras, Louisiana, Maryland, Mexico Northeast, Mexico Southeast, Mississippi, New Jersey, Nicaragua, North Carolina, South Carolina, Tennessee, Texas, Virginia

    Panicum ensifolium Baldwin ex Elliott appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Chapman [s.n.], USA K000674409

    First published in Sketch Bot. S. Carolina 1: 126 (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
    • Ibrahim, K.M. & Peterson, P.M. (2014). Grasses of Washington, D.C. Smithsonian Contributions to Botany 99: 1-128.
    • 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.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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