1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum cumbucanum Renvoize

        This species is accepted, and its native range is Brazil (Bahia).

    [GB]
    Habit
    Perennial. Rhizomes short. Culms decumbent; 15-35 cm long. Culm-internodes 1-2.8 cm long; distally hispid. Culm-nodes pubescent. Lateral branches ample; arising from upper culm. Leaf-sheaths 1-2 cm long; glabrous on surface, or hispid; outer margin hairy. Ligule a ciliate membrane; 0.4-0.6 mm long. Collar pubescent. Leaf-blade base amplexicaul. Leaf-blades ascending; lanceolate; 1-3 cm long; 3-6 mm wide; stiff. Leaf-blade midrib conspicuous. Leaf-blade surface pubescent; hairy on both sides. Leaf-blade margins scaberulous; ciliate; hairy at base. Leaf-blade apex acute.
    Inflorescences
    Inflorescence a panicle; exserted, or embraced at base by subtending leaf. Panicle open; ovate; 1-2.5 cm long; 1-2 cm wide; bearing few spikelets. Panicle axis pubescent. Panicle branches eglandular; pubescent; pubescent in axils. Spikelets solitary, or in pairs. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.9-2.4 mm long; 0.6-0.8 mm wide; falling entire. Rhachilla internodes elongated between glumes. Rhachilla elongation 0.3 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.9-2.4 mm long; 0.6-0.8 mm wide; falling entire. Rhachilla internodes elongated between glumes. Rhachilla elongation 0.3 mm long.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; not clasping; 1-1.3 mm long; 0.5 length of spikelet; membranous; without keels; 3 -veined. Lower glume surface glabrous, or pubescent. Lower glume apex acute. Upper glume elliptic; 1.3-1.9 mm long; 0.66-0.75 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume surface pubescent. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 7-9 -veined; glabrous, or pubescent; acute. Palea of lower sterile floret 1.3-1.5 mm long; 0.75 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.5-1.8 mm long; 0.5-0.7 mm wide; indurate; pallid; without keel; 5 -veined. Lemma surface pubescent. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
    Flowers
    Anthers 3; 0.9 mm long; purple.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 1.2-1.5 mm long. Embryo 0.4-0.5 length of caryopsis. Hilum punctiform.
    Distribution
    South America: Brazil.
    Reference
    Paniceae. Zuloaga 1994.

    Images

    Distribution

    Native to:

    Brazil Northeast

    Panicum cumbucanum Renvoize appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Harley, R.M. [15930], Bahia K000003525 isotype
    Guedes, M.L. [761], Brazil K001102185
    Borba, E.L. [1905], Brazil K001102184

    First published in Kew Bull. 37: 332 (1982)

    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.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    Sources

    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