1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea juergensii Hack.

        This species is accepted, and its native range is SE. & S. Brazil to Argentina (Misiones).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; erect at the tip, or inclined at the tip; 200-400(-500) cm long; 7-15 mm diam.; woody; without nodal roots. Culm-internodes terete; thick-walled; 11-19 cm long; distally pruinose, or glabrous. Lateral branches dendroid; extravaginal; ascending, or spreading. Bud complement 40-80. Branch complement many; in a clump. Culm-sheaths deciduous; 9-19.5 cm long; glabrous; glabrous on margins; without auricles. Culm-sheath ligule 1-3 mm high; ciliolate. Culm-sheath blade triangular; demarcated but persistent; erect; 1.4-6 cm long; glabrous on surface, or scabrid; acuminate. Leaves 5-9 per branch. Leaf-sheaths deciduous; glabrous on surface, or pubescent; outer margin glabrous. Ligule an eciliate membrane, or a ciliolate membrane; 0.2-0.5 mm long; glabrous on abaxial surface, or pubescent on abaxial surface; truncate. Collar with external ligule. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath; petiole 0.1-0.2 cm long. Leaf-blades lanceolate; 4.9-10.3 cm long; 5-12 mm wide; coriaceous. Leaf-blade venation without cross veins. Leaf-blade surface glabrous.
    Inflorescences
    Inflorescence a panicle; without bracts, or bracteate at branch bases, or bracteate at pedicel base; embraced at base by subtending leaf. Panicle contracted; lanceolate; 1-3 cm long. Primary panicle branches appressed. Panicle branches scabrous; glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-6 mm long.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 6.9-8.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 6.9-8.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume orbicular; 0.05-0.2 mm long; 0.5-0.6 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblong; 0.1-0.4 mm long; 0.05 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex truncate.
    Florets
    Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret elliptic; 2.4-3.3 mm long; 0.33-0.5 length of fertile lemma; chartaceous; 1-3 -veined; without lateral veins, or distinctly veined; acute. Lemma of upper sterile floret elliptic; 3.3-3.6 mm long; 1.2-1.5 length of lower sterile floret; chartaceous; acute. Fertile lemma oblong; 6.1-7.2 mm long; coriaceous; without keel; 5-7 -veined. Lemma apex acute; mucronate. Palea 6.4-7.6 mm long; 4 -veined.
    Flowers
    Lodicules 3; membranous. Anthers 3; 4.2-4.5 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; 3.7 mm long; purple; apex unappendaged. Embryo 0.33 length of caryopsis. Hilum linear; 0.75 length of caryopsis.
    Distribution
    South America: Brazil.
    Reference
    Bambuseae. Clarke 1996.
    Diagnostic
    Leaf-sheaths spotted light green.

    Images

    Distribution

    Native to:

    Argentina Northeast, Brazil South, Brazil Southeast, Uruguay

    Chusquea juergensii Hack. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 1992 Clark, L. [900], Brazil K000925330
    Aug 1, 1992 Clark, L. [915], Brazil K000925331
    Aug 1, 1992 Clark, L. [897], Brazil K000925332
    Jan 1, 1992 Silva, J.M. [862], Brazil K000925329

    First published in Repert. Spec. Nov. Regni Veg. 7: 325 (1909)

    Accepted by

    • Lizarazu, M.A. & al. (2013). Chusquea juergensii (Poaceae, Bambusoideae, Bambuseae) nueva cita para la Argentina Boletín de la Sociedad Argentina de Botánica 48: 341-345.
    • 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
    • Lizarazu, M.A. & al. (2013). Chusquea juergensii (Poaceae, Bambusoideae, Bambuseae) nueva cita para la Argentina Boletín de la Sociedad Argentina de Botánica 48: 341-345.
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • 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