1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca werdermannii St.-Yves

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 25-40 cm long; 1-2 -noded. Leaf-sheaths glabrous on surface, or puberulous. Ligule a ciliolate membrane; 1-2 mm long; pubescent on abaxial surface. Leaf-blades filiform; convolute; angular in section; 3-7 cm long; 0.9-1.1 mm wide. Leaf-blade venation comprising 3-5 vascular bundles; with subepidermal sclerenchyma free from veins. Leaf-blade surface pubescent; hairy adaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear; 5-10 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; smooth.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; smooth.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.3-3 mm long; 0.75-0.9 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.5-4 mm long; 0.66 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 4-6 mm long; chartaceous; without keel; 5 -veined. Lemma apex obtuse, or acute; muticous. Palea 2 -veined. Palea keels smooth. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; 0.7 mm long. Anthers 3; 2.3 mm long. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; obovoid; 4.5 mm long; hairy at apex. Hilum linear; 0.5 length of caryopsis.
    Distribution
    South America: southern South America.
    Reference
    Poeae. Matthei 1995.

    Images

    Distribution

    Native to:

    Argentina Northwest, Chile Central, Chile North

    Festuca werdermannii St.-Yves appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 1, 1982 Coquimbo K000433664 isosyntype

    First published in Candollea 3: 301 (1927)

    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
    • 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.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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