1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus coarctatus (Trin.) P.M.Peterson & Saarela

        This species is accepted, and its native range is SE. & S. Brazil to NE. Argentina.

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Rhizomes absent, or short. Culms erect; 100-200 cm long. Leaf-sheaths smooth; outer margin glabrous. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs; 2-3 mm long. Leaf-blades involute; 2-3 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins smooth, or scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes numerous; 10-50; borne along a central axis; closely spaced; in a multilateral false spike; appressed; unilateral; 2-5 cm long; bearing 15-25 fertile spikelets on each. Central inflorescence axis 15-40 cm long; pilose. Rhachis angular; smooth on margins; ciliate on margins; terminating in a spikelet. Spikelet packing broadside to rhachis; regular; 2 -rowed. Spikelets pectinate; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 10-20 mm long; 4-8 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 10-20 mm long; 4-8 mm wide; falling entire.
    Glume
    Glumes dissimilar; exceeding apex of florets. Lower glume linear; 6-10 mm long; 0.5-0.6 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein ciliate. Lower glume lateral veins absent. Lower glume surface glabrous, or pilose. Lower glume apex acute. Upper glume lanceolate; 10-20 mm long; 1.5 length of adjacent fertile lemma; scarious; 1-keeled; 1-3 -veined. Upper glume primary vein ciliate. Upper glume surface glabrous, or pilose. Upper glume apex attenuate; muticous, or awned; 1 -awned. Upper glume awn 0-2 mm long.
    Florets
    Fertile lemma oblong; 8-12 mm long; herbaceous; keeled; 3 -veined. Lemma midvein ciliate; hairy above. Lemma margins scaberulous. Lemma apex emarginate. Palea 2 -veined.
    Flowers
    Lodicules absent. Anthers 3; 4-7 mm long.
    Distribution
    South America: Brazil and southern South America.
    Reference
    Cynodonteae. Mobberley 1993.

    Images

    Distribution

    Native to:

    Argentina Northeast, Brazil South, Brazil Southeast, Uruguay

    Sporobolus coarctatus (Trin.) P.M.Peterson & Saarela appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Brazil Spartina ciliata K000309011
    Clayton, W.D. [4717], Brazil Spartina ciliata K001101780
    Dusén, P. [13811], Brazil Spartina ciliata K001101781
    Sellow [698], Brazil Spartina ciliata K000309010
    Baptista, L.R. [27755], Brazil Spartina ciliata K001101782

    First published in Taxon 63: 1236 (2014)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP 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/.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.

    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 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