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

        This species is accepted, and its native range is S. Central & S. Texas to NE. Mexico.

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Culms decumbent; 20-50(-65) cm long; wiry. Culm-internodes papillose; distally pubescent. Culm-nodes swollen. Lateral branches ample; arising from mid culm and upper culm. Leaves all alike. Leaf-sheaths mostly shorter than adjacent culm internode; hispid; with tubercle-based hairs. Ligule a fringe of hairs; 1 mm long. Leaf-blade base broadly rounded. Leaf-blades ascending; lanceolate; 3-9 cm long; 3-9 mm wide. Leaf-blade surface puberulous; hairy on both sides. Leaf-blade margins tuberculate-ciliate; hairy at base. Leaf-blade apex abruptly acute.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Panicle open; ovate; 4-13 cm long; 2-3 cm wide; bearing few spikelets. Primary panicle branches ascending; branching divaricately. Spikelets appressed; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; with attenuate base; dorsally compressed; 3.5-4.3 mm long; 1.7 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; with attenuate base; dorsally compressed; 3.5-4.3 mm long; 1.7 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1.5-2 mm long; 0.33 length of spikelet; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface pubescent. Lower glume apex acuminate. Upper glume ovate; 0.9 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface pubescent. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 7 -veined; pubescent; acute. Fertile lemma elliptic; dorsally compressed; 3 mm long; 1.4 mm wide; indurate; shiny; without keel. Lemma margins involute. Lemma apex acute; pubescent. Palea involute; indurate.
    Distribution
    North America: south-central USA and Mexico.
    Reference
    Paniceae. Hitchc & Chase 1996.

    Distribution

    Native to:

    Mexico Northeast, Texas

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

    First published in Contr. U.S. Natl. Herb. 15: 293 (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.

    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.
    • 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

    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