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

        This species is accepted, and its native range is N. Argentina.

    [GB]
    Habit
    Perennial; caespitose. Basal innovations extravaginal and intravaginal. Culms erect; 25-30 cm long; 2-4 -noded. Culm-nodes glabrous. Lateral branches fastigiate; arising from lower culm and mid culm. Leaf-sheaths smooth; glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Collar glabrous. Leaf-blades filiform; convolute; 2-12 cm long; 0.4-0.5 mm wide. Leaf-blade surface ribbed; scaberulous; rough adaxially. Leaf-blade margins scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; continuous, or interrupted; 4-10 cm long; bearing few spikelets. Panicle branches smooth. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; angular; smooth.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 9-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.75 mm long; pubescent; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 9-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.75 mm long; pubescent; obtuse.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume linear; 6-9 mm long; 0.66 length of upper glume; membranous; 1 -veined. Lower glume lateral veins absent. Lower glume apex dentate; 2 -fid; mucronate. Upper glume linear; 9-12 mm long; membranous; 1 -veined. Upper glume lateral veins absent. Upper glume apex dentate; 2 -fid; mucronate.
    Florets
    Fertile lemma linear; subterete; 8-10 mm long; coriaceous; without keel; 3 -veined. Lemma surface scaberulous; rough above. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn straight; with 8-20 mm long limb. Lateral lemma awns gyrate; 6-18 mm long; shorter than principal. Palea 1 mm long.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; without sulcus; 8-8.5 mm long; dark brown. Hilum linear.
    Distribution
    South America: southern South America.
    Reference
    Aristideae. Caro 1995.

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest

    Aristida multiramea Hack. appears in other Kew resources:

    First published in Anales Mus. Nac. Hist. Nat. Buenos Aires 21: 67 (1911)

    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
    • 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

    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