1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum incumbens Swallen

        This species is accepted, and its native range is SE. Mexico to Nicaragua.

    [GB]
    Habit
    Perennial. Culms rambling; 85 cm long. Culm-internodes distally pubescent. Lateral branches sparse. Leaf-sheaths longer than adjacent culm internode; hispid; with tubercle-based hairs. Ligule a ciliate membrane; 0.5 mm long. Leaf-blades lanceolate; 13-22 cm long; 9-18 mm wide; coriaceous. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins cartilaginous; scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 6-25 cm long. Primary panicle branches appressed. Panicle axis scabrous; pilose. Panicle branches stiff; scabrous; pilose. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.9-3 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.9-3 mm long; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.15-0.33 length of spikelet; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5-7 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5-7 -veined; acute. Fertile lemma elliptic; dorsally compressed; 2-6 mm long; indurate; without keel. Lemma surface striate; pubescent. Lemma margins involute. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: Mexico. South America: Mesoamericana.
    Reference
    Paniceae. Swallen 1995.

    Distribution

    Native to:

    Guatemala, Honduras, Mexico Southeast, Nicaragua

    Panicum incumbens Swallen appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 29: 417 (1950)

    Accepted by

    • Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
    • 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.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    Literature

    Kew Backbone Distributions
    • Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
    • 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.
    • 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

    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