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

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

    [GB]
    Habit
    Perennial. Culms geniculately ascending. Culm-internodes elliptical in section; distally glabrous. Culm-nodes pubescent. Lateral branches ample; arising from lower culm and mid culm. Leaf-sheaths hispid; with tubercle-based hairs; outer margin hairy. Ligule a fringe of hairs; 2-3 mm long. Leaf-blade base broadly rounded, or cordate. Leaf-blades 5-12 cm long; 5-10 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy on both sides. Leaf-blade margins undulate; ciliate.
    Inflorescences
    Inflorescence a panicle. Peduncle glabrous, or pubescent above. Panicle open; ovate; 6-15 cm long. Primary panicle branches 1 -nate; 5-8 cm long. Spikelets appressed; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; acuminate; 4 mm long; 1-4 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; acuminate; 4 mm long; 1-4 mm wide; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75 length of spikelet; membranous; without keels; 5 -veined. Lower glume apex acuminate. Upper glume ovate; 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; 1 length of spikelet; membranous; 9 -veined; acute. Fertile lemma elliptic; dorsally compressed; 2.5 mm long; indurate; without keel. Lemma margins involute. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 2.2 mm long.
    Distribution
    North America: southwest USA, south-central USA, and Mexico.
    Reference
    Paniceae. Hitchc & Chase 2004.

    Distribution

    Native to:

    Mexico Northeast, Mexico Northwest, Mexico Southwest, New Mexico

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

    First published in Contr. U.S. Natl. Herb. 15: 66 (1910)

    Accepted by

    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Garcia-Mendoza, A.J. & Meave, J.A. (eds.) (2012). Diversidad florística de Oaxaca: de musgos a angiospermas (colecciones y listas de especies), ed. 2: 1-351. Instituto de Biología, Universidad Nacional Autónoma de México.
    • 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.

    Literature

    Kew Backbone Distributions
    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Garcia-Mendoza, A.J. & Meave, J.A. (eds.) (2012). Diversidad florística de Oaxaca: de musgos a angiospermas (colecciones y listas de especies), ed. 2: 1-351. Instituto de Biología, Universidad Nacional Autónoma de México.
    • 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.

    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