1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida niederleinii Mez

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

    [GB]
    Habit
    Perennial; caespitose. Basal innovations intravaginal; flabellate. Culms erect; 11-24 cm long; 1-2 -noded. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths wider than blade at the collar; scaberulous. Leaf-sheath oral hairs bearded; deciduous; 2.5-3.5 mm long. Ligule a fringe of hairs. Collar glabrous. Leaf-blades filiform; convolute; 13.5-33 cm long; 0.5 mm wide; stiff. Leaf-blade surface ribbed; scabrous; rough on both sides. Leaf-blade margins scaberulous. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle; comprising 6-18 fertile spikelets. Panicle contracted; oblong; 5-17 cm long; bearing few spikelets. Primary panicle branches bearing 2-3 fertile spikelets on each lower branch. Panicle axis scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; angular; scaberulous; tip widened.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 28-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 28-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; obtuse.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume linear; 15-25 mm long; 0.5-0.66 length of upper glume; membranous; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume surface smooth, or asperulous; rough above. Lower glume apex acute; awned; 1 -awned. Lower glume awn 2-4 mm long. Upper glume linear; 24-40 mm long; membranous; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute; awned; 1 -awned. Upper glume awn 4-8 mm long.
    Florets
    Fertile lemma linear; subterete; 12.5-14 mm long; coriaceous; without keel; 3 -veined. Lemma midvein without distinctive roughness, or scaberulous. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn straight; with 105-145 mm long limb. Lateral lemma awns 95-136 mm long; shorter than principal. Palea 1.5 mm long.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; without sulcus; 9-10 mm long; light brown. Hilum linear.
    Distribution
    South America: southern South America.
    Reference
    Aristideae. Caro 1995.

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest

    Aristida niederleinii Mez appears in other Kew resources:

    First published in Repert. Spec. Nov. Regni Veg. 17: 150 (1921)

    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