1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum tuerckheimii Hack.

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

    [GB]
    Habit
    Perennial. Rootstock evident. Culms erect, or geniculately ascending; 30-50 cm long. Culm-internodes elliptical in section; distally glabrous. Culm-nodes pubescent. Lateral branches lacking. Leaf-sheaths keeled; glabrous on surface. Ligule a ciliate membrane; 0.5 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 10-25 cm long; 20-25 mm wide. Leaf-blade margins ciliate; hairy at base. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; 15-20 cm long. Primary panicle branches ascending; 5-10 cm long. Panicle axis glabrous. Panicle branches glabrous; pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acuminate; 2.5-3 mm long; 0.9 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acuminate; 2.5-3 mm long; 0.9 mm wide; falling entire.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.05-0.1 length of spikelet; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; dark brown; without keels. Upper glume lateral veins obscure. Upper glume surface puberulous. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; light brown; obscurely veined; puberulous; acuminate. Fertile lemma elliptic; dorsally compressed; 2.4 mm long; 0.8 mm wide; coriaceous; without keel. Lemma margins involute. Lemma apex acute; pubescent. Palea involute; coriaceous.
    Distribution
    North America: Mexico. South America: Mesoamericana.
    Reference
    Paniceae. Chase 1994.

    Distribution

    Native to:

    Belize, Guatemala, Mexico Central, Mexico Gulf, Mexico Southeast, Nicaragua

    Panicum tuerckheimii Hack. appears in other Kew resources:

    First published in Allg. Bot. Z. Syst. 12: 60 (1906)

    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.
    • 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.
    • Stevens, W.D., Ulloa U., C., Pool, A. & Montiel, O.M. (2001). Flora de Nicaragua Monographs in Systematic Botany from the Missouri Botanical Garden 85: i-xlii, 1-2666.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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.
    • Stevens, W.D., Ulloa U., C., Pool, A. & Montiel, O.M. (2001). Flora de Nicaragua Monographs in Systematic Botany from the Missouri Botanical Garden 85: i-xlii, 1-2666.
    • 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