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

        This species is accepted, and its native range is Mexico to Central America.

    [GB]
    Habit
    Annual; caespitose. Culms erect; 50-125 cm long; 2-3 mm diam. Culm-internodes distally pilose; with tubercle-based hairs. Culm-nodes constricted; brown; glabrous. Lateral branches lacking. Leaf-sheaths pilose; with tubercle-based hairs. Ligule a ciliate membrane; 1.2-1.3 mm long. Leaf-blades 11-35 cm long; 6-10 mm wide. Leaf-blade surface glabrous, or pilose; with tubercle-based hairs. Leaf-blade apex abruptly acute.
    Inflorescences
    Inflorescence a panicle. Peduncle 5-9 cm long. Panicle open; ovate; 20-35 cm long; 12 cm wide. Primary panicle branches 1 -nate; 9-18 cm long. Panicle branches glabrous in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acuminate; 4.7-5.1 mm long; falling entire. Rhachilla internodes elongated between glumes. Rhachilla elongation 0.5-0.8 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acuminate; 4.7-5.1 mm long; falling entire. Rhachilla internodes elongated between glumes. Rhachilla elongation 0.5-0.8 mm long.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 3.1-3.7 mm long; 0.75 length of spikelet; membranous; without keels; 5-7 -veined. Lower glume apex acuminate. Upper glume ovate; 3.9-4.7 mm long; 1 length of spikelet; membranous; without keels; 9 -veined. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 3.8-4.2 mm long; 1 length of spikelet; membranous; 9 -veined; acute. Fertile lemma ovate; dorsally compressed; 2.8-3.2 mm long; indurate; shiny; without keel. Lemma margins involute. Palea involute; indurate.
    Flowers
    Anthers 3; 1.2-1.4 mm long; purple.
    Fruits
    Caryopsis ellipsoid; pallid.
    Distribution
    North America: Mexico. South America: Mesoamericana.
    Reference
    Paniceae. Fl Costa Rica 1994.

    Distribution

    Native to:

    Costa Rica, Guatemala, Honduras, Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Nicaragua

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

    Date Reference Identified As Barcode Type Status
    Hinton, G.B. [1996], México State K000476085
    Hinton, G.B. [1996], México State K000476086
    Hinton, G.B. [2000], México State K000476087
    Hinton, G.B. [6686], Guerrero K000476088

    First published in Contr. U.S. Natl. Herb. 15: 68 (1910)

    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

    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.

    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