1. Family: Poaceae Barnhart
    1. Genus: Cortaderia Stapf
      1. Cortaderia araucana Stapf

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 100-150 cm long. Leaf-sheaths longer than adjacent culm internode; glabrous on surface, or pilose; outer margin hairy. Ligule a fringe of hairs; 2-3 mm long. Leaf-blades 30-80 cm long; 3-10 mm wide; stiff. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
    Inflorescences
    Gynodioecious (male, in this context, indicating the bisexual state), or dioecious (by loss of viability in bisexual plants). Inflorescence a panicle; exserted, or embraced at base by subtending leaf. Panicle open; oblong; dense; 20-25 cm long. Panicle branches scabrous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Male spikelets pedicelled. Male inflorescence nominally bisexual similar to female; a panicle. Male spikelets distinct from female (less hairy); hairy (hairs 3-4mm).
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5 mm long; bearded.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5 mm long; bearded.
    Glume
    Glumes similar; shorter than spikelet; similar to fertile lemma in texture; shiny. Lower glume linear; 12.5-17 mm long; 1 length of upper glume; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex entire, or dentate; 2 -fid; acuminate. Upper glume linear; 13-20 mm long; 0.75 length of adjacent fertile lemma; hyaline; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex entire, or dentate; 2 -fid; acuminate.
    Florets
    Fertile florets female. Fertile lemma lanceolate; 16-25 mm long; hyaline; shiny; without keel; 3 -veined. Lemma surface villous. Lemma hairs 6-8 mm long. Lemma apex awned; 1 -awned. Principal lemma awn 3-10 mm long overall. Palea 5-8 mm long; 0.33 length of lemma; hyaline; 2 -veined. Palea keels ciliolate. Palea surface pilose; hairy on flanks. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; 0.5 mm long; fleshy; ciliate. Anthers 3; 1-3 mm long. Staminodes present; 1-3 mm long.
    Fruits
    Caryopsis with adherent pericarp; 2-2.5 mm long.
    Male
    Male inflorescence nominally bisexual similar to female; a panicle. Male spikelets distinct from female (less hairy); hairy (hairs 3-4mm).
    Distribution
    South America: southern South America.
    Reference
    Arundineae. Fl Pat 1993.

    Images

    Distribution

    Native to:

    Argentina South, Chile Central, Chile South

    Cortaderia araucana Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1990 Parodi, L.R. [11633], Argentina K000709843
    Jan 1, 1990 Donat, A. [249], Argentina K000709844
    Jun 1, 1942 Eyerdam, W.J. [24460], Argentina K000709842
    Comber, H.F. [227], Chile K000709839
    Werdermann, E. [1360], Chile K000709838
    Werdermann, E. [1360], Chile K000709840
    Sparre, B. [1993], Chile K000709841
    s.coll. [s.n.], Chile K000709834
    s.coll. [s.n.], Chile K000709835
    s.coll. [s.n.], Chile K000709836
    s.coll. [s.n.], Chile K000709837

    First published in Gard. Chron., ser. 3, 22: 396 (1897)

    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

    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