1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida oligospira (Hack.) Henrard

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

    [GB]
    Habit
    Perennial. Culms 70-110(-140) cm long. Lateral branches lacking. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs, or a ciliolate membrane (rarely); 0.2 mm long. Collar glabrous. Leaf-blades straight; conduplicate; 30-80 cm long; 3-4 mm wide. Leaf-blade surface scabrous (densely); rough adaxially; glabrous. Leaf-blade apex acute; antrorsely scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; (13-)15-27 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; 0.2-0.3 mm long; pilose; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; straight; 0.2-0.3 mm long; pilose; obtuse.
    Glume
    Glumes persistent; dissimilar (lower longer than upper sometimes subequal). Lower glume lanceolate; 12-15 mm long; 1 -veined. Lower glume primary vein scabrous. Lower glume surface asperulous; rough generally. Lower glume apex setaceously attenuate. Upper glume lanceolate; 11-13 mm long; 1 -veined. Upper glume surface smooth. Upper glume apex entire; setaceously attenuate.
    Florets
    Fertile lemma subterete; 6-7 mm long; without keel; rounded throughout; 3 -veined. Lemma surface papillose; rough above; with a median groove (ventral,longitudinal). Lemma margins involute. Lemma apex awned; 3 -awned. Principal lemma awn flexuous; reflexed, or twisted together; simple at base; with 22-32 mm long limb; with twisted column. Column of lemma awn 7-12 mm long. Lateral lemma awns wrapped around principal (or reflexed); 19-27 mm long; shorter than principal.
    Distribution
    South America: Brazil and southern South America.
    Reference
    Aristideae. LO-W 1993.

    Images

    Distribution

    Native to:

    Argentina Northeast, Brazil Northeast, Brazil Southeast, Brazil West-Central, Paraguay

    Aristida oligospira (Hack.) Henrard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hassler, E. [9963], Paraguay K000308652
    Hassler, E. [3825], Paraguay K000308653
    Hassler, E. [8321], Paraguay K000308654

    First published in Meded. Rijks-Herb. 54: 160 (1926)

    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
    • 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.

    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