1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida flabellata Caro

        This species is accepted, and its native range is N. Argentina.

    [GB]
    Habit
    Annual; caespitose; clumped densely. Basal innovations intravaginal; flabellate. Culms erect; 40-50 cm long; 1-2 -noded. Culm-internodes terete; distally glabrous. Culm-nodes glabrous. Lateral branches sparse; arising from lower culm. Leaf-sheaths longer than adjacent culm internode; striately veined; smooth, or scaberulous. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Collar glabrous. Leaf-blades conduplicate, or convolute; 3.5-15 cm long; 1.5-2 mm wide. Leaf-blade surface scabrous; rough on both sides. Leaf-blade margins scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; continuous, or interrupted; 17-20 cm long. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5-0.75 mm long; pubescent; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5-0.75 mm long; pubescent; obtuse.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 4-7 mm long; 0.75 length of upper glume; membranous; 1 -veined. Lower glume primary vein ciliolate. Lower glume lateral veins absent. Lower glume apex mucronate. Upper glume lanceolate; 5-9 mm long; 1 length of adjacent fertile lemma; membranous; 1 -veined. Upper glume primary vein smooth, or scaberulous. Upper glume lateral veins absent. Upper glume apex dentate; 2 -fid; mucronate.
    Florets
    Fertile lemma linear; subterete; 5.5-8.5 mm long; coriaceous; without keel; 3 -veined. Lemma midvein scabrous. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn with 8-15 mm long limb. Lateral lemma awns 6-13 mm long; subequal to principal, or shorter than principal. Palea 1 mm long; 0.1-0.2 length of lemma; hyaline; 0 -veined.
    Flowers
    Lodicules 2. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; 7-7.5 mm long; light brown.
    Distribution
    South America: southern South America.
    Reference
    Aristideae. Caro 1997.

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest

    Aristida flabellata Caro appears in other Kew resources:

    First published in Kurtziana 1: 148 (1961)

    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

    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