1. Family: Poaceae Barnhart
    1. Genus: Cortaderia Stapf
      1. Cortaderia speciosa (Nees) Stapf

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

    [GB]
    Habit
    Perennial; caespitose. Culms robust; 200-300 cm long; 3-5 mm diam. Culm-nodes brown; glabrous. Ligule a fringe of hairs; 2-3 mm long. Leaf-blades 100-150 cm long; 6-10 mm wide. Leaf-blade midrib keeled beneath. Leaf-blade margins scabrous.
    Inflorescences
    Gynodioecious (male, in this context, indicating the bisexual state). Inflorescence a panicle. Peduncle 40-50 cm long. Panicle open; elliptic; dense; 40-60 cm long; 10-15 cm wide. Primary panicle branches appressed; 20-30 cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 3-8 mm long; scaberulous.
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 9-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1 mm long. Floret callus evident; 0.6-0.8 mm long; bearded.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 9-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1 mm long. Floret callus evident; 0.6-0.8 mm long; bearded.
    Glume
    Glumes similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 6-8 mm long; 0.75-0.9 length of upper glume; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous. Lower glume margins ciliolate. Lower glume apex entire, or dentate; 2 -fid; acuminate. Upper glume lanceolate; 8-9 mm long; 0.9-1 length of adjacent fertile lemma; hyaline; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface asperulous. Upper glume margins ciliolate. Upper glume apex entire, or dentate; 2 -fid; acuminate.
    Florets
    Fertile florets female. Fertile lemma lanceolate; 8-10 mm long; hyaline; without keel; 3 -veined. Lemma surface scaberulous; plumose; hairy below. Lemma margins ciliolate. Lemma hairs 4-6 mm long. Lemma apex attenuate; muticous, or awned; 1 -awned. Principal lemma awn 0-2.5 mm long overall. Palea 3-4 mm long; 0.5 length of lemma; hyaline; 2 -veined. Palea keels ciliolate. Palea apex entire, or dentate; 2 -fid; truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; 0.3-0.5 mm long; fleshy; ciliate. Anthers 3. Staminodes present; 0.1-0.2 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: western South America and southern South America.
    Reference
    Arundineae. Conert 1993.
    Diagnostic
    Bisexual plants unknown.

    Images

    Distribution

    Native to:

    Argentina Northwest, Bolivia, Chile Central, Chile North

    Cortaderia speciosa (Nees) Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1995 Renvoize, S.A. [5247], Bolivia K000709833
    Jul 1, 1958 Philippi, R.A. [s.n.], Chile K000709875
    Jul 1, 1958 Fischer, W. [237], Argentina K000709874
    Jul 1, 1958 Buchtien, O. [507], Bolivia K000709830
    Jul 1, 1958 Buchtien, O. [507], Bolivia K000709831
    Jul 1, 1958 Hunziker, J.H. [1848], Argentina K000709872
    Fiebrig, K. [2656], Bolivia K000709828
    Pichi Sermolli, R.E.G. [7348], Argentina K000709873
    Peterson, P.M. [11810], Bolivia K000709820
    Peterson, P.M. [13128], Bolivia K000709821
    Peterson, P.M. [13082], Bolivia K000709822
    Peterson, P.M. [12725], Bolivia K000709823
    Peterson, P.M. [11805], Bolivia K000709824
    Peterson, P.M. [12823], Bolivia K000709825
    Peterson, P.M. [12823], Bolivia K000709826
    Peterson, P.M. [12766], Bolivia K000709832
    [Meyen] [s.n.], Chile K000308155 Unknown type material
    Renvoize, S.A. [5272], Bolivia K000709818
    Renvoize, S.A. [5272], Bolivia K000709819
    Renvoize, S. [4582], Bolivia K000709829
    Renvoize, S.A. Cope, T.A. [3813], Bolivia K000709827

    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.
    • 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

    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