1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea tomentosa Widmer & L.G.Clark

        This species is accepted, and its native range is Costa Rica.

    [GB]
    Habit
    Perennial. Culms scandent; 600-900 cm long; 13-40 mm diam.; woody; without nodal roots. Culm-internodes terete; 18-38 cm long; smooth, or scaberulous. Lateral branches dendroid; infravaginal. Bud complement 50-60. Branch complement many; in a clump; thinner than stem. Culm-sheaths persistent; 11.8-25.4 cm long. Culm-sheath ligule 1-4 mm high. Culm-sheath blade triangular; narrower than sheath; demarcated but persistent; erect; 1.5-5.4 cm long; pubescent. Leaves 4-9 per branch. Leaf-sheaths glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate; erect and deciduous; 1-2 mm long. Ligule an eciliate membrane; 0.5-1 mm long; pubescent on abaxial surface; truncate, or obtuse. Collar with external ligule; glabrous. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.1-0.15 cm long. Leaf-blades linear; 15-27 cm long; 3-7 mm wide. Leaf-blade venation without cross veins. Leaf-blade surface pubescent; densely hairy; hairy abaxially.
    Inflorescences
    Inflorescence a panicle; exserted, or embraced at base by subtending leaf. Panicle open; linear; 8-16 cm long. Primary panicle branches 3-4 cm long. Panicle axis angular; scabrous; glabrous. Panicle branches angular; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 2-6 mm long.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 11.5-15 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; 11.5-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.5-1.3 mm long; membranous; without keels; 0-1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.7-1.5 mm long; without keels; 0-1 -veined. Upper glume primary vein absent, or obscure. 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; 7.2-9.7 mm long; chartaceous; 5-7 -veined; scabrous; acute. Lemma of upper sterile floret ovate; 11.7-14 mm long; chartaceous; scabrous; acute. Fertile lemma ovate; 11.5-13.5 mm long; coriaceous; without keel; 7-9 -veined. Lemma surface scabrous. Lemma apex acute. Palea 9.5-12.1 mm long; 6-8 -veined. Palea keels contiguous above a sulcus. Palea surface scabrous.
    Flowers
    Lodicules 3; membranous; ciliate. Anthers 3; 6-8 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    South America: Mesoamericana.
    Reference
    Bambuseae. Clark 1995.

    Images

    Distribution

    Native to:

    Costa Rica

    Chusquea tomentosa Widmer & L.G.Clark appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1990 Clark, L. [500], Costa Rica K000433245 isotype
    Jan 1, 1990 Clark, L. [500], Costa Rica K000433246 isotype

    First published in Ann. Missouri Bot. Gard. 78: 165 (1991)

    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
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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