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

        This species is accepted, and its native range is Mexico (Veracruz, Oaxaca).

    [GB]
    Habit
    Perennial. Culms 100-200 cm long; 5-10 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; smooth. Culm-nodes swollen; with distinct supra-nodal ridge. Lateral branches dendroid; infravaginal. Branch complement many; in a clump; with 1 branch dominant; thinner than stem. Culm-sheaths deciduous but leaving a persistent girdle; smooth. Culm-sheath ligule 2-3 mm high. Culm-sheath blade triangular; deciduous; 1 cm long. Ligule an eciliate membrane; 2-9 mm long; obtuse, or acute. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.2-0.3 cm long. Leaf-blades lanceolate; 7-12 cm long; 8-15 mm wide; light green. Leaf-blade venation with distinct cross veins (beneath). Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Peduncle 6-12 cm long. Panicle open; ovate; 7-11 cm long; contracted about primary branches. Primary panicle branches spreading; 4-6 cm long. Panicle axis angular; glabrous. Panicle branches angular; glabrous. Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels 7-14 mm long; glabrous.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 6-8 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; 6-8 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.3-0.5 mm long; 0.75 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.4-0.8 mm long; 0.07-0.1 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Basal sterile florets similar; barren; with palea (rarely in upper), or without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret elliptic; 4-4.6 mm long; chartaceous; 1-3 -veined; acuminate. Lemma of upper sterile floret ovate; 4.5-5.1 mm long; chartaceous; acuminate. Fertile lemma ovate; 5.7-7.1 mm long; coriaceous; without keel; 7 -veined. Lemma apex acuminate. Palea 5.5-6.8 mm long; 4-6 -veined. Palea keels contiguous above a sulcus.
    Flowers
    Lodicules 3; membranous. Anthers 3; 4-5 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    North America: Mexico.
    Reference
    Bambuseae. Clarke 1995.

    Images

    Distribution

    Native to:

    Mexico Gulf, Mexico Southwest

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

    Date Reference Identified As Barcode Type Status
    Jan 1, 1995 Soderstrom, T.R. [2239], Mexico K000433228 isotype
    Jan 1, 1995 Soderstrom, T.R. [2239], Mexico K000433229 isotype

    First published in Ann. Missouri Bot. Gard. 74: 426 (1987)

    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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    Literature

    Kew Backbone Distributions
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    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