1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea circinata Soderstr. & C.E.Calderón

        This species is accepted, and its native range is Mexico (Sinaloa to Chiapas).

    [GB]
    Habit
    Perennial. Culms erect; 500-700 cm long; 10-15 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; smooth. Lateral branches dendroid. Branch complement many; girdling the culm; with 1 branch dominant; thinner than stem. Culm-sheaths antrorsely scabrous. Ligule an eciliate membrane; 0.4 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 4.5-5.5 cm long; 6-7 mm wide. Leaf-blade venation without cross veins. Leaf-blade surface pilose; sparsely hairy; hairy on both sides.
    Inflorescences
    Inflorescence a panicle; comprising 20-40 fertile spikelets. Panicle contracted; linear; 5-9 cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; 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 lanceolate; 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; 0.2-0.4 mm long; 0.75-0.9 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.2-0.4 mm long; 0.02-0.05 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; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret lanceolate; 6-6.4 mm long; 0.75-0.8 length of fertile lemma; membranous; 5-7 -veined; obtuse; mucronate. Lemma of upper sterile floret lanceolate; 6.1-6.6 mm long; 1 length of lower sterile floret; membranous; obtuse; mucronate. Fertile lemma lanceolate; 6.3-7.5 mm long; coriaceous; without keel; 7 -veined. Lemma margins ciliolate; hairy above. Lemma apex acute. Palea 7 mm long; 6-8 -veined. Palea surface glabrous.
    Flowers
    Lodicules 3; 1.5-1.8 mm long; membranous; veined; ciliate. Anthers 3; 4.1-4.3 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    North America: Mexico.
    Reference
    Bambuseae. Sod & Cald 1995.

    Distribution

    Native to:

    Mexico Northwest, Mexico Southeast, Mexico Southwest

    Chusquea circinata Soderstr. & C.E.Calderón appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1995 Wendt, T. [5048], Mexico K000482796

    First published in Brittonia 30: 156 (1978)

    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.

    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