1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida flaccida Trin. & Rupr.

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

    [GB]
    Habit
    Perennial. Culms 26-45 cm long. Lateral branches lacking. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs; 0.2 mm long. Collar glabrous. Leaf-blades straight; convolute; 8-32 cm long; 1.2-2 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade apex acute; antrorsely scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open (pauciflore); 16-20 cm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; straight; 0.7 mm long; pilose; acute (subacute).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; straight; 0.7 mm long; pilose; acute (subacute).
    Glume
    Glumes persistent; dissimilar (lower shorter than upper). Lower glume lanceolate; 11-12 mm long; 3(-5) -veined. Lower glume primary vein scabrous. Lower glume surface asperulous; rough generally. Lower glume apex acute; muticous. Upper glume lanceolate; 13-16(-20) mm long; 1 -veined. Upper glume surface smooth. Upper glume apex entire; acute.
    Florets
    Fertile lemma subterete; 19-25 mm long; without keel; rounded throughout; 3 -veined. Lemma surface scaberulous; rough above; without grooves. Lemma margins convolute. Lemma apex awned; 3 -awned. Principal lemma awn straight; ascending; simple at base; with 19-25 mm long limb; without a column. Lateral lemma awns ascending; (4-)7-8(-9) mm long; shorter than principal.
    Distribution
    South America: Brazil.
    Reference
    Aristideae. LO-W 1993.

    Images

    Distribution

    Native to:

    Brazil South, Brazil Southeast, Uruguay

    Aristida flaccida Trin. & Rupr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1993 Clayton, W.D. [4213], Brazil K001101232
    Jan 1, 1993 Riedel [1478], Brazil K000308647
    Brazil K000308648
    Brazil K000308649
    Clayton, W.D. [4248], Brazil K001101230
    Clayton, W.D. [4281], Brazil K001101231
    Clayton, W.D. [4228], Brazil K001101235
    Clayton, W.D. [4330], Brazil K001101326
    Hatschbach, G. [33765], Brazil K001101324
    Hatschbach, G. [12159], Brazil K001101325
    Hatschbach, G. [15249], Brazil K001101328
    Longhi-Wagner, H.M. [2829], Brazil K001101330
    Longhi-Wagner, H.M. [3709], Brazil K001101331
    Longhi-Wagner, H.M. [3639], Brazil K001101332
    Longhi-Wagner, H.M. [8916], Brazil K001101338
    Longhi-Wagner, H.M. [8889], Brazil K001101339
    Sendulsky, T. [754], Brazil K001101329
    Smith, L.B. [14551], Brazil K001101229
    Smith, L.B. [15620], Brazil K001101327
    Smith, L.B. [15910], Brazil K001101333
    Smith, L.B. [13964], Brazil K001101336
    Archer, W.A. [4134], Brazil K001101347
    Widgren [s.n.], Brazil K001101343
    Klein, R. [3726], Brazil K001101335
    Regnell [II 314], Brazil K001101340
    Rosengurtt [9003], Brazil K001101337
    Rambo, B. [36471], Brazil K001101344
    Klein, R.M. [12171], Brazil K001101334
    Dombrowski, L.T. [1402], Brazil K001101233
    Dombrowski, L.T. [1384], Brazil K001101234
    Dombrowski, L.T. [1423], Brazil K001101236
    Dombrowski, L.T. [1532], Brazil K001101237
    Glaziou, A. [20090], Brazil K001101341
    Glaziou, A. [20103], Brazil K001101342
    Glaziou, A. [7981], Brazil K001101345
    Glaziou [7981], Brazil K001101346

    First published in Sp. Gram. Stipac.: 117 (1842)

    Accepted by

    • Lezama, F. & Bonifacino, J.M. (2012). Sinopsis de Aristida (Poaceae) para Uruguay Boletín de la Sociedad Argentina de Botánica 47: 135-143.
    • 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
    • Lezama, F. & Bonifacino, J.M. (2012). Sinopsis de Aristida (Poaceae) para Uruguay Boletín de la Sociedad Argentina de Botánica 47: 135-143.

    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