1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida venustula Arechav.

        This species is accepted, and its native range is Bolivia to S. Brazil and N. Argentina.

    [GB]
    Habit
    Perennial. Culms 20-35(-45) cm long. Lateral branches lacking. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs; 0.2 mm long. Collar glabrous. Leaf-blades curved; conduplicate; 5-18 cm long; 0.5-0.8(-1.2) mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous, or pilose; hairless except near base; sparsely hairy; hairy adaxially. Leaf-blade apex acute; antrorsely scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open (pauciflore); 8-20 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; 0.7-1 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; 0.7-1 mm long; pilose; acute (subacute).
    Glume
    Glumes persistent; dissimilar (lower shorter than upper). Lower glume lanceolate; (11-)14-19 mm long; 3-5 -veined (lateral veins convergent with the central). Lower glume primary vein scabrous. Lower glume surface asperulous; rough generally. Lower glume apex acuminate, or setaceously attenuate. Upper glume lanceolate; (17-)20-33 mm long; 1 -veined. Upper glume surface smooth. Upper glume apex entire; setaceously attenuate.
    Florets
    Fertile lemma laterally compressed (slightly); 11-18 mm long; keeled (slightly ABOVE); 3 -veined. Lemma midvein scabrous. Lemma surface smooth, or scabrous; rough above (2/3); without grooves. Lemma margins convolute. Lemma apex awned; 3 -awned. Principal lemma awn straight; ascending; simple at base; with 55-90(-100) mm long limb; without a column. Lateral lemma awns ascending; 55-90(-100) mm long; subequal to principal.
    Distribution
    South America: Brazil, southern South America, and western South America (Bolivia).
    Reference
    Aristideae. LO-W 1993.
    Diagnostic
    Culms grouped in fascicles. Lemma apex with an hyaline appendage 1-1.5mm.

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest, Bolivia, Brazil South, Paraguay, Uruguay

    Aristida venustula Arechav. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Clayton, W.D. [4365], Brazil K001101360
    Riedel [1640], Brazil K000308670
    Sellow [s.n.], Brazil K000308668
    Sellow [s.n.], Brazil K000308669
    Puerto, R. [8692], Brazil K001101361

    First published in Anales Mus. Nac. Montevideo 4(1): 77 (1902)

    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.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. 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.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    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