1. Family: Poaceae Barnhart
    1. Genus: Cortaderia Stapf
      1. Cortaderia atacamensis (Phil.) Pilg.

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; robust; 200-300 cm long; 2.5-3.5 mm diam. Culm-nodes brown; glabrous. Ligule a fringe of hairs; 1-2 mm long. Leaf-blades 50-60 cm long; 5-7 mm wide. Leaf-blade midrib keeled beneath. Leaf-blade surface scabrous. Leaf-blade margins scabrous.
    Inflorescences
    Gynodioecious (male, in this context, indicating the bisexual state). Inflorescence a panicle; embraced at base by subtending leaf. Peduncle 50 cm long. Panicle open; oblong; dense; 40-50 cm long; 10-14 cm wide. Primary panicle branches appressed; 15-20 cm long. Panicle axis scabrous; pilose. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-3 mm long; scabrous.
    Spikelets
    Spikelets comprising 4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 11-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long. Floret callus evident; 0.5 mm long; pilose.
    Fertile
    Spikelets comprising 4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 11-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long. Floret callus evident; 0.5 mm long; pilose.
    Glume
    Glumes similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 7-8 mm long; 0.8 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; 8.5-9.5 mm long; 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; 8.5-9.5 mm long; hyaline; without keel; 3 -veined. Lemma surface scaberulous; plumose; hairy below. Lemma margins ciliolate. Lemma hairs 4.5-5.5 mm long. Lemma apex attenuate. Palea 3.5-4 mm long; 0.3-0.4 length of lemma; hyaline; 2 -veined. Palea keels ciliolate. Palea surface pilose; hairy on flanks. Palea apex truncate, or obtuse. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy; ciliate. Anthers 3. Staminodes present; 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.

    Distribution

    Native to:

    Argentina Northwest, Bolivia, Chile Central, Chile North

    Cortaderia atacamensis (Phil.) Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Connor, H.E. [148722], New Zealand K000709584
    Goulding, J.H. [120108], New Zealand K000709583

    First published in Bot. Jahrb. Syst. 37: 374 (1906)

    Accepted by

    • Jørgensen, P.M., Nee, M.H. & Beck., S.G. (eds.) (2013). Catálogo de las plantas vasculares de Bolivia Monographs in Systematic Botany from the Missouri Botanical Garden 127: 1-1741.
    • 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.

    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