1. Family: Poaceae Barnhart
    1. Genus: Cortaderia Stapf
      1. Cortaderia modesta (Döll) Hack. ex Dusén

        This species is accepted, and its native range is SE. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms 100-250 cm long; 1.5-2 mm diam. Culm-nodes brown; glabrous. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule a fringe of hairs; 0.5-0.8 mm long. Leaf-blades 20-80 cm long; 6-12 mm wide. Leaf-blade midrib keeled beneath. Leaf-blade surface scabrous; rough on both sides. Leaf-blade margins scabrous.
    Inflorescences
    Gynodioecious (male, in this context, indicating the bisexual state). Inflorescence a panicle; embraced at base by subtending leaf. Panicle contracted; lanceolate; 20-30 cm long; 3-5 cm wide. Primary panicle branches 3-5 cm long. Panicle axis pubescent. Panicle branches scabrous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-3 mm long; ciliate. Male inflorescence bisexual similar to female; a panicle. Male spikelets resembling female.
    Spikelets
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 10-14 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; bearded. Floret callus hairs 2.5-3 mm long.
    Fertile
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 10-14 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; bearded. Floret callus hairs 2.5-3 mm long.
    Glume
    Glumes similar; shorter than spikelet; similar to fertile lemma in texture; gaping. Lower glume lanceolate; 9-12 mm long; 1 length of upper glume; membranous; without keels; 1-3 -veined. Lower glume lateral veins absent, or obscure. Lower glume surface asperulous. Lower glume margins ciliolate. Lower glume apex obtuse, or acute. Upper glume lanceolate; 9-12 mm long; 1.5-1.7 length of adjacent fertile lemma; membranous; without keels; 1-3 -veined. Upper glume lateral veins absent, or obscure. Upper glume surface asperulous. Upper glume margins ciliolate. Upper glume apex obtuse, or acute.
    Florets
    Fertile florets female. Fertile lemma ovate; 6-7 mm long; membranous; without keel; 3-5 -veined. Lemma surface scaberulous; plumose; hairy below. Lemma margins ciliate. Lemma hairs 2-2.5 mm long. Lemma apex entire, or dentate; 3 -fid; acuminate; muticous. Palea lanceolate; 6-7 mm long; 2 length of lemma; 2 -veined. Palea keels ciliolate. Palea surface pilose; hairy on back and on flanks. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 3 mm long. Staminodes present; 2 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Male
    Male inflorescence bisexual similar to female; a panicle. Male spikelets resembling female.
    Distribution
    South America: Brazil.
    Reference
    Arundineae. Conert 1993.

    Images

    Distribution

    Native to:

    Brazil Southeast

    Cortaderia modesta (Döll) Hack. ex Dusén appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jul 1, 1958 Glaziou [16602], Brazil K000709634
    Jul 1, 1958 Glaziou [16602], Brazil K000709635
    Jul 1, 1958 Glaziou [17913], Brazil K000709637
    Jul 1, 1958 Glaziou [17913], Brazil K000709638
    s.coll. [4352], Brazil K000308148 Unknown type material
    s.coll. [4352], Brazil K000308149 Unknown type material
    Carauta, J.P.P. [927], Brazil K000709636

    First published in Ark. Bot. 9(5): 4 (1909)

    Accepted by

    • 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
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    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