1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida macrophylla Hack.

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

    [GB]
    Habit
    Perennial. Culms 50-100 cm long. Lateral branches lacking. Leaf-sheath oral hairs bearded (deciduous). Ligule a fringe of hairs; 0.5-0.8 mm long. Collar glabrous. Leaf-blades flexuous (sometimes erect); flat (lower), or convolute (upper); 15-50(-55) cm long; 0.5-2.5 mm wide. Leaf-blade surface scabrous; rough adaxially (densely); glabrous, or pilose (sometimes); hairless except near base; sparsely hairy; hairy adaxially. Leaf-blade apex acute; antrorsely scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted (or subcontracted); (14-)18-23 cm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; straight; 0.5-0.7 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 evident; straight; 0.5-0.7 mm long; pilose; acute (subacute).
    Glume
    Glumes persistent; dissimilar (lower longer than upper). Lower glume lanceolate; 10-14(-16) mm long; 1 -veined. Lower glume primary vein scabrous. Lower glume surface scabrous; rough generally. Lower glume apex acuminate; muticous. Upper glume lanceolate; (6-)10-12 mm long; 1 -veined. Upper glume surface smooth. Upper glume apex entire; acute.
    Florets
    Fertile lemma subterete; 6-7(-10) mm long; without keel; rounded throughout; 3 -veined. Lemma surface scabrous; rough generally; with a median groove (ventral,longitudinal). Lemma margins convolute. Lemma apex awned; 3 -awned. Principal lemma awn straight, or flexuous; ascending, or spreading; pseudo-articulate at base; with 16-20(-24) mm long limb; with twisted column. Column of lemma awn 5-7(-8) mm long. Lateral lemma awns ascending, or spreading as much as principal; 14-18(-21) mm long; shorter than principal (slightly).
    Distribution
    South America: western South America, Brazil, and southern South America.
    Reference
    Aristideae. LO-W 1993.
    Diagnostic
    Awns connivent at basis, than divergents.

    Images

    Distribution

    Native to:

    Argentina Northeast, Bolivia, Brazil South, Brazil Southeast, Paraguay

    Aristida macrophylla Hack. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1993 Rosengurtt [8980], Brazil K001054508
    Jan 1, 1993 Klein, R.M. [4.198], Brazil K000308660 paratype
    Hassler, E. [11323], Paraguay K000308659

    First published in Denkschr. Kaiserl. Akad. Wiss., Wien. Math.-Naturwiss. Kl. 79(1): 77 (1908)

    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.
    • 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