Skip to main content
  1. Family: Poaceae Barnhart
    1. Genus: Piresia Swallen
      1. Piresia sympodica (Döll) Swallen

        This species is accepted, and its native range is Trinidad to S. Tropical America.

    [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. 100 m.; Amazonia.
    Habit
    Hierba
    Conservation
    No Evaluada
    [GB]
    Habit
    Perennial; caespitose. Culms erect, or geniculately ascending; 15-30 cm long; wiry. Leaves cauline; 5-7 per branch. Ligule an eciliate membrane. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 3-7 cm long; 6-12 mm wide; mid-green and glaucous; discolorous with last colour beneath. Leaf-blade surface pilose; hairy abaxially. Leaf-blade apex acute.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on a separate leafless culm. Inflorescence composed of racemes; terminal and axillary. Racemes 1; single; bearing few fertile spikelets; bearing 2-3 fertile spikelets on each. Sexes mixed. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Male spikelets sessile; 1 in a cluster. Pedicels cuneate.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 7-8 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; reaching apex of florets; thinner than fertile lemma. Lower glume elliptic; 7-8 mm long; 1 length of upper glume; herbaceous; without keels; 5 -veined. Lower glume lateral veins ribbed. Lower glume surface puberulous. Lower glume apex acuminate. Upper glume elliptic; 7-8 mm long; 1 length of adjacent fertile lemma; herbaceous; without keels; 3 -veined. Upper glume lateral veins ribbed. Upper glume surface puberulous. Upper glume apex acuminate.
    Florets
    Fertile florets female. Fertile lemma elliptic; 7-8 mm long; indurate; without keel; 5 -veined. Lemma surface pubescent. Palea indurate; 2 -veined.
    Flowers
    Anthers 3.
    Spikelets
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 3 mm long. Male spikelet glumes absent. Male spikelet lemma 3 -veined; muticous. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 7-8 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Male
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 3 mm long. Male spikelet glumes absent. Male spikelet lemma 3 -veined; muticous.
    Distribution
    South America: Caribbean, northern South America, western South America, and Brazil.
    Reference
    Olyreae. Fl W Indies.
    Diagnostic
    Leaf midvein pubescent above.

    Images

    Distribution

    Native to:

    Brazil North, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Trinidad-Tobago, Venezuela

    Synonyms

    Other Data

    Piresia sympodica (Döll) Swallen appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2013 Ratter, J.A. [R5878], Brazil K001055016
    Nov 1, 2013 Calderon, C.E. [2269], Brazil K001055008
    Nov 1, 2013 Calderón, C.E. [2058], Brazil K001055011
    Nov 1, 2013 Calderón, C.E. [2059], Brazil K001055012
    Nov 1, 2004 K000433382 isotype
    Jan 1, 1984 Plowman, T. [12256], Brazil K001055007
    Calderon, C.E. [2494], Brazil K001055006
    Soderstrom, T.R. [1191], Brazil K001055009
    Soderstrom, T.R. [1200], Brazil K001055010
    Soderstrom, T.R. [1199], Brazil K001055015
    Calderón, C.E. [2300], Brazil K001055005
    Calderón, C.E. [2059], Brazil K001055013
    Calderón, C.E. [2058], Brazil K001055014

    Bibliography

    First published in Phytologia 11: 153 (1964)

    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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • 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.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • 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.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    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 2020. 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 2020. 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

    Neotropikey
    Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    http://creativecommons.org/licenses/by/3.0