1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea aspera L.G.Clark

        This species is accepted, and its native range is Peru.

    [GB]
    Habit
    Perennial. Culms scandent; 1000-1500 cm long; woody; without nodal roots. Culm-internodes terete; solid; antrorsely scabrous. Culm-nodes flush with internodes; with distinct supra-nodal ridge. Lateral branches dendroid; extravaginal, or infravaginal. Branch complement several; in a clump; thinner than stem. Culm-sheaths deciduous but leaving a persistent girdle; antrorsely scabrous. Leaves 6-7 per branch. Leaf-sheaths keeled; glabrous on surface; outer margin hairy. Ligule an eciliate membrane; 2.5-7 mm long; obtuse. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.15-0.6 cm long. Leaf-blades lanceolate; 13-23 cm long; 20-32 mm wide. Leaf-blade venation with obscure cross veins. Leaf-blade surface glabrous. Leaf-blade margins cartilaginous; scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; secund; 13-38 cm long. Primary panicle branches ascending; 1.5-15 cm long. Panicle axis scabrous; glabrous. Panicle branches angular; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 2-5 mm long; scabrous.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 11-15.7 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 elliptic; laterally compressed; 11-15.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.9-2 mm long; membranous; without keels; 0-1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous; pilose; hairy at apex. Lower glume apex acute. Upper glume ovate; 1.3-4 mm long; without keels; 3-5 -veined. Upper glume surface scabrous; pilose; hairy at apex. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 5.5-6.4 mm long; chartaceous; 5-9 -veined; scabrous; ciliate on margins; fringed above; acute. Lemma of upper sterile floret ovate; 7.7-11.6 mm long; chartaceous; scabrous; ciliate on margins; fringed above; acute. Fertile lemma ovate; 10.2-13.6 mm long; coriaceous; without keel; 9-13 -veined. Lemma surface scabrous; inner surface scabrous (at apex). Lemma margins ciliate; hairy above. Lemma apex acute. Palea 10-12.4 mm long; 4-8 -veined. Palea keels contiguous above a sulcus. Palea surface scabrous.
    Flowers
    Lodicules 3; 1.5-2 mm long; membranous; ciliate. Anthers 3; 6-8 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    South America: western South America.
    Reference
    Bambuseae. Clark 1995.

    Images

    Distribution

    Chusquea aspera L.G.Clark appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1985 Schunke, J.V. [10178], Peru K000433279 isotype

    First published in Iowa State J. Res. 61: 113 (1986)

    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.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    Literature

    Kew Backbone Distributions
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    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