1. Family: Poaceae Barnhart
    1. Genus: Cortaderia Stapf
      1. Cortaderia egmontiana (Roem. & Schult.) M.Lyle ex Giussani, Soreng & Anton

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

    [GB]
    Habit
    Perennial; caespitose. Culms 20-90 cm long. Culm-nodes glabrous. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs; 0.5-2 mm long. Leaf-blades conduplicate, or convolute; 10-50 cm long; 3-5 mm wide; stiff. Leaf-blade surface scabrous; rough abaxially. Leaf-blade margins scabrous.
    Inflorescences
    Gynodioecious (male, in this context, indicating the bisexual state), or dioecious (by loss of viability in bisexual plants). Inflorescence a panicle. Peduncle 7-28 cm long. Panicle open; elliptic; dense; 3-10 cm long. Primary panicle branches 1.5-6 cm long. Panicle branches bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Male spikelets pedicelled. Pedicels 1-3 mm long; scabrous. Male inflorescence nominally bisexual similar to female; a panicle. Male spikelets distinct from female (less hairy).
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 12-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5 mm long; pilose. Floret callus hairs 0.5-2 mm long.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 12-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5 mm long; pilose. Floret callus hairs 0.5-2 mm long.
    Glume
    Glumes similar; shorter than spikelet; similar to fertile lemma in texture; shiny. Lower glume linear; 11-14 mm long; 1 length of upper glume; hyaline; purple; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex attenuate. Upper glume linear; 11-14 mm long; 3 length of adjacent fertile lemma; hyaline; purple; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex attenuate.
    Florets
    Fertile florets female. Fertile lemma lanceolate; 4-5 mm long; hyaline; shiny; without keel; 3 -veined. Lemma surface scaberulous; villous; hairy below. Lemma hairs 4 mm long. Lemma apex attenuate; awned; 1 -awned. Principal lemma awn 5-8 mm long overall. Palea 4-6 mm long; 1 length of lemma; hyaline; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; 0.5 mm long; fleshy; ciliate. Anthers 3; 2.5-3 mm long. Staminodes present.
    Fruits
    Caryopsis with adherent pericarp; 2-2.5 mm long. Hilum elliptic.
    Male
    Male inflorescence nominally bisexual similar to female; a panicle. Male spikelets distinct from female (less hairy).
    Distribution
    South America: southern South America. Antarctic: Subantarctic islands.
    Reference
    Arundineae. Fl Pat 1993.

    Images

    Distribution

    Native to:

    Argentina South, Chile Central, Chile South, Falkland Is.

    Cortaderia egmontiana (Roem. & Schult.) M.Lyle ex Giussani, Soreng & Anton appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Lewis, R. [202], Falkland Is. K000299642
    Jul 1, 1958 Wilkes [2], Argentina Cortaderia pilosa K000709852
    Jan 1, 1949 Ferrari, P. [422], Argentina Cortaderia pilosa K000709848
    Eyerdam, W.J. [10599B], Chile Cortaderia pilosa K000709847
    Parodi, L.R. [3192], Argentina Cortaderia pilosa K000709849
    Moore, D.M. [2090], Argentina Cortaderia pilosa K000709850
    Moore, D.M. [1926], Argentina Cortaderia pilosa K000709851
    Lechler [783], Chile Cortaderia pilosa K000709845
    Lechler [3032], Chile Cortaderia pilosa K000709846
    Lechler, W. [760], Chile Calamagrostis patula K000308164 Unknown type material

    First published in Darwiniana 49: 90 (2011)

    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