1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia argentinensis (Hack.) Parodi

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 10-25 cm long; 2 -noded. Culm-internodes distally glabrous. Leaf-sheaths open for most of their length; longer than adjacent culm internode. Ligule an eciliate membrane; 2-3 mm long; obtuse. Leaf-blades filiform; convolute; 3-6 cm long; 0.5-0.7 mm wide. Leaf-blade surface glabrous. Leaf-blade apex obtuse.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; lanceolate, or oblong; 10-12 cm long. Primary panicle branches appressed, or ascending. Panicle branches capillary; scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.7 mm long; glabrous.
    Fertile
    Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.7 mm long; glabrous.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume ovate; 1-1.5 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex erose; obtuse. Upper glume ovate; 1.5-2 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex erose; obtuse.
    Florets
    Fertile lemma ovate; 2-2.5 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma apex obtuse. Palea 1 length of lemma; 2 -veined. Palea keels smooth. Palea apex truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 0.5 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    South America: southern South America.
    Reference
    Poeae. Hackel 1997.

    Distribution

    Native to:

    Argentina Northwest, Chile North

    Puccinellia argentinensis (Hack.) Parodi appears in other Kew resources:

    First published in Notas Mus. La Plata, Bot. 2: 13 (1937)

    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 2019. 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 2019. 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