1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca argentinensis (St.-Yves) Türpe

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

    [GB]
    Habit
    Perennial; caespitose. Basal innovations intravaginal. Culms erect; 20-50 cm long; 1 -noded; with 0.5 of their length below uppermost node. Culm-internodes terete; glaucous; smooth; distally glabrous. Leaves distichous. Leaf-sheaths open for most of their length; striately veined; smooth; glabrous on surface. Ligule a ciliolate membrane; 0.5 mm long; truncate. Leaf-blades erect; filiform; conduplicate; 0.8-1 mm wide; stiff; glaucous. Leaf-blade venation comprising 11 vascular bundles; with 9 inner ridges; with subepidermal sclerenchyma attached to veins above and below; with continuous uniform subepidermal sclerenchyma layer on the underside. Leaf-blade surface smooth, or scaberulous; rough abaxially; pubescent; hairy adaxially. Leaf-blade apex filiform.
    Inflorescences
    Inflorescence a panicle; embraced at base by subtending leaf. Panicle contracted; oblong; 3-10 cm long; bearing few spikelets. Primary panicle branches 1-2 -nate. Panicle axis smooth, or scaberulous. Panicle branches smooth, or scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or elliptic; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; scaberulous.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or elliptic; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; scaberulous.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3 mm long; 0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume margins ciliolate. Lower glume apex acuminate. Upper glume lanceolate; 4-4.5 mm long; 0.7-0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume margins ciliolate. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 5.5-6.5 mm long; chartaceous; without keel; 5 -veined. Lemma apex acute; muticous, or awned; 1 -awned. Principal lemma awn 1-1.5 mm long overall. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 3-3.5 mm long; purple. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; glabrous. Hilum linear.
    Distribution
    South America: western South America and southern South America.
    Reference
    Poeae. Turpe 1997.

    Distribution

    Native to:

    Argentina Northwest, Bolivia, Chile North

    Festuca argentinensis (St.-Yves) Türpe appears in other Kew resources:

    First published in Darwiniana 15: 254 (1969)

    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 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