1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida friesii Hack. ex Henrard

        This species is accepted, and its native range is Bolivia to NW. Argentina.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 30-50 cm long. Culm-internodes antrorsely scabrous. Lateral branches lacking. Leaf-sheaths longer than adjacent culm internode; antrorsely scabrous. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs. Leaf-blades 20-30 cm long; 3 mm wide. Leaf-blade surface scabrous; rough on both sides; glabrous; hairless except near base. Leaf-blade margins scabrous. Leaf-blade apex acuminate; filiform.
    Inflorescences
    Inflorescence a panicle. Peduncle antrorsely scabrous above. Panicle open; elliptic; 15 cm long; contracted about primary branches. Primary panicle branches appressed, or ascending; 1-3 -nate. Panicle axis scabrous. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; scabrous.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.25 mm long; pubescent; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.25 mm long; pubescent; obtuse.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 7 mm long; 0.85 length of upper glume; membranous; 3 -veined. Lower glume primary vein scabrous. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; mucronate. Upper glume lanceolate; 8 mm long; membranous; 1 -veined. Upper glume primary vein smooth. Upper glume lateral veins absent. Upper glume apex dentate; 2 -fid; acuminate; mucronate.
    Florets
    Fertile lemma linear; subterete; 7-8 mm long; coriaceous; without keel; 3 -veined. Lemma surface granulose. Lemma margins convolute; covering most of palea. Lemma apex with a short cylindrical neck; awned; 3 -awned. Principal lemma awn 3-branched; with 9-10 mm long limb. Lateral lemma awns 8 mm long; shorter than principal.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; without sulcus. Hilum linear.
    Distribution
    South America: western South America.
    Reference
    Aristideae. Henrard 1995.

    Distribution

    Native to:

    Argentina Northwest, Bolivia

    Aristida friesii Hack. ex Henrard appears in other Kew resources:

    First published in Meded. Rijks-Herb. 54: 186 (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.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. 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.
    • 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

    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