1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca argentina (Speg.) Parodi

        This species is accepted, and its native range is S. Chile to W. Argentina.

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths pallid, or yellow; pubescent. Basal innovations intravaginal. Culms erect; 40-100 cm long. Lateral branches lacking. Leaf-sheaths open for most of their length; glabrous on surface. Ligule a ciliolate membrane; 0.5 mm long. Leaf-blades filiform; conduplicate; 15-30 cm long; 1-1.5 mm wide; stiff. Leaf-blade surface puberulous; hairy adaxially. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 7-15 cm long. Panicle axis scaberulous. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; smooth, or scaberulous. Floret callus pubescent.
    Fertile
    Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; smooth, or scaberulous. Floret callus pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 5-7.5 mm long; 0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 6-8 mm long; 0.7-0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 7-9.5 mm long; chartaceous; without keel; 5 -veined. Lemma surface scabrous; rough generally; puberulous; hairy at base. Lemma apex acute; muticous. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Palea surface scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; ciliate. Anthers 3; 3-4.5 mm long. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear; 0.5 length of caryopsis.
    Distribution
    South America: southern South America.
    Reference
    Poeae. Fl Pat 1995.

    Distribution

    Native to:

    Argentina Northwest, Argentina South, Chile South

    Festuca argentina (Speg.) Parodi appears in other Kew resources:

    First published in Physis (Buenos Aires) 11: 498 (1935)

    Accepted by

    • Ospina, J.C., Aliscioni, S.S. & Denham, S.S. (2015). A revision of Festuca (Loliinae, Pooideae, Poaceae) in Chile Phytotaxa 223(1): 1-66.
    • 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