1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum aquarum Zuloaga & Morrone

        This species is accepted, and its native range is Colombia to Venezuela and N. Brazil.

    [CPLC]

    Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

    Distribution
    Nativa en Colombia; Alt. 0 - 500 m.; Orinoquia.
    Habit
    Hierba
    Conservation
    No Evaluada
    [GB]
    Habit
    Annual. Culms erect; 90-130 cm long; rooting from lower nodes. Culm-internodes thin-walled; 7-19 cm long; distally glabrous. Culm-nodes brown; glabrous. Lateral branches ample; arising from upper culm. Leaf-sheaths 8-18 cm long. Ligule a ciliate membrane; 1.2 mm long; pilose on abaxial surface. Collar glabrous. Leaf-blades persistent, or deciduous at the ligule; involute; 11-18 cm long; 2-4 mm wide. Leaf-blade surface scaberulous.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Peduncle 10-25 cm long; scaberulous above; glabrous. Panicle open; pyramidal; 35-40 cm long; 12-28 cm wide. Panicle branches scaberulous; glabrous in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels clavate; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3-3.9 mm long; 1-1.2 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3-3.9 mm long; 1-1.2 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma; gaping. Lower glume ovate; 1.7-2.7 mm long; 0.5-0.75 length of spikelet; membranous; without keels; 5 -veined. Lower glume primary vein scaberulous. Lower glume apex acuminate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7 -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; 7 -veined; acute. Palea of lower sterile floret 1.7-2.1 mm long; 0.5-0.66 length of lemma. Fertile lemma elliptic; dorsally compressed; 2.1 mm long; indurate; yellow and black; mottled with last colour; shiny; without keel; 5 -veined. Lemma margins involute. Palea involute; indurate. Palea apex papillose.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 1.5 mm long. Embryo 0.33 length of caryopsis. Hilum punctiform.
    Distribution
    South America: northern South America.
    Reference
    Paniceae. Zuloaga 1995.

    Images

    Distribution

    Native to:

    Brazil North, Colombia, Venezuela

    Panicum aquarum Zuloaga & Morrone appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Burchell, W.J. [8813], Brazil K001101851
    Burchell [8813], Brazil K001101850

    First published in Novon 1: 185 (1991)

    Accepted by

    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • 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
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.

    Sources

    Catálogo de Plantas y Líquenes de Colombia
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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