1. Family: Poaceae Barnhart
    1. Genus: Alopecurus L.
      1. Alopecurus bonariensis Parodi & Thell.

        This species is accepted, and its native range is Argentina to Uruguay.

    [GB]
    Habit
    Annual; caespitose. Culms geniculately ascending; 5-30 cm long. Ligule an eciliate membrane; 2-3.5 mm long; obtuse. Leaf-blades 3-6 cm long; 2.5-3 mm wide. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle; subtended by an inflated leaf-sheath; exserted, or embraced at base by subtending leaf. Peduncle cylindrical at apex. Panicle spiciform; oblong, or ovate; 1-3 cm long; 0.4-0.5 cm wide. Panicle axis with rounded ribs. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.6-2.8 mm long; falling entire.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.6-2.8 mm long; falling entire.
    Glume
    Glumes connate along margins below; 0.33 of their length connate; similar; exceeding apex of florets. Lower glume ovate; 2.6-2.8 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scabrous; ciliate (below & tip). Lower glume surface pubescent. Lower glume apex obtuse. Upper glume ovate; 2.6-2.8 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous; ciliate (below & tip). Upper glume surface pubescent. Upper glume apex obtuse.
    Florets
    Fertile lemma oblong; 2.5 mm long; membranous; keeled; 5 -veined. Lemma margins connate below; with 0.33 of their length connate. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 3-3.5 mm long overall; with twisted column.
    Flowers
    Lodicules absent. Anthers 3; 0.5-0.6 mm long. Stigmas protogynous; terminally exserted; pubescent. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 1.3-1.5 mm long. Hilum punctiform. Disseminule comprising a spikelet.
    Distribution
    South America: southern South America.
    Reference
    Aveneae. Fl Pat 1995.

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina South, Uruguay

    Alopecurus bonariensis Parodi & Thell. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Parodi, L.R. [6526], Buenos Aires K000308507 Unknown type material

    First published in Repert. Spec. Nov. Regni Veg. 23: 302 (1927)

    Accepted by

    • 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.
    • 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
    • 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 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