1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum polycomum Trin.

        This species is accepted, and its native range is Colombia to N. South America and N. & NE. Brazil.

    [GB]
    Habit
    Annual. Culms decumbent; 3-15 cm long; rooting from lower nodes. Culm-internodes distally glabrous. Culm-nodes purple; bearded. Lateral branches ample. Leaf-sheaths scaberulous; glabrous on surface, or hirsute; outer margin hairy. Ligule an eciliate membrane; 0.1-0.3 mm long. Collar glabrous. Leaf-blades flat, or conduplicate; 7-25 cm long; 1-2 mm wide. Leaf-blade surface glabrous, or hirsute; hairy adaxially, or on both sides. Leaf-blade margins glabrous, or tuberculate-ciliate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 1.2-2.5 cm long; 1-2 cm wide. Panicle branches smooth. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; flexuous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 0.9-1.1 mm long; 0.3-0.5 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 0.9-1.1 mm long; 0.3-0.5 mm wide; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5 mm long; 0.5 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous, or pilose. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; pilose; acute. Fertile lemma elliptic; dorsally compressed; 0.9-1 mm long; indurate; pallid; without keel. Lemma surface smooth. Lemma margins involute. Palea involute; indurate.
    Distribution
    South America: northern South America, western South America, and Brazil.
    Reference
    Paniceae. Fl Guiana 1995.
    [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.; Amazonia, Guayana y Serranía de La Macarena, Orinoquia, Pacífico, Valle del Magdalena.
    Habit
    Hierba
    Conservation
    No Evaluada

    Images

    Distribution

    Native to:

    Brazil North, Brazil Northeast, Colombia, French Guiana, Guyana, Suriname, Venezuela

    Panicum polycomum Trin. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Spruce, R. [2341], Brazil K000309238
    Spruce, R. [2341], Brazil K000309239
    Spruce, R. [s.n.], Brazil K000309240
    Ule, E. [5380], Brazil K001101878
    Calderon, C.E. [2693], Brazil K001101871
    Calderon, C.E. [2579], Brazil K001101872
    Nee, M. [34954], Brazil K001101874
    Nee, M. [34961], Brazil K001101875
    Prance, G.T. [4878], Brazil K001101869
    Prance, G.T. [4878], Brazil K001101870
    Prance, G.T. [4877], Brazil K001101873
    Prance, G.T. [23515], Brazil K001101876
    Prance, G.T. [4483], Brazil K001101880
    Prance, G.T. [9891], Brazil K001101882
    Sant´Ana, S.C. [128], Brazil K001101868
    Spruce [1498], Brazil K001101879
    Spruce, R. [1490], Brazil K001102183
    Spruce, R. [1498] K001101881
    P.J.M. [468], Brazil K001101877
    Baldwin, J.T. [3551], Brazil Panicum obovatum K001101885
    Prance, G.T. [9913], Brazil Panicum froesii K001101883
    Cid Ferreira, C.A. [4027], Brazil Panicum froesii K001101884

    First published in Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 3(2): 306 (1834)

    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.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.

    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.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.

    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