1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea nelsonii Scribn. & J.G.Sm.

        This species is accepted, and its native range is Mexico (Michoacán, Guerrero).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms leaning; 300-500 cm long; 5-10 mm diam.; woody; without nodal roots. Culm-internodes terete. Lateral branches dendroid; infravaginal. Branch complement many; in an irregular line (bulging downwards at centre); thinner than stem. Culm-sheaths 5.6-19 cm long; smooth; without auricles. Culm-sheath blade lanceolate; deciduous; erect; 1.8 cm long; glabrous on surface. Ligule an eciliate membrane; 1-2 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 6.4-15.4 cm long; 5-10 mm wide. Leaf-blade venation without cross veins. Leaf-blade surface pilose; hairy abaxially. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; dense; 4-6.5 cm long. Primary panicle branches appressed. Panicle axis pilose. Spikelets appressed; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6.6-7.8 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; 6.6-7.8 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; 0.6-1.3 mm long; 1 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.6-1.3 mm long; 0.15-0.25 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 3.8-4.8 mm long; 0.5-0.66 length of fertile lemma; chartaceous. Lemma of upper sterile floret ovate; 3.8-4.8 mm long; chartaceous. Fertile lemma lanceolate; 6.4-7.1 mm long; coriaceous; without keel. Lemma margins involute; covering most of palea. Lemma apex acuminate. Palea tightly convolute around flower; 1 length of lemma. Palea keels contiguous above a sulcus.
    Flowers
    Lodicules 3; membranous. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    North America: Mexico. South America: Mesoamericana.
    Reference
    Bambuseae. Fl Meso-Am 1997.

    Distribution

    Native to:

    Mexico Southwest

    Chusquea nelsonii Scribn. & J.G.Sm. appears in other Kew resources:

    First published in Bull. Div. Agrostol. U.S.D.A. 4: 16 (1897)

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

    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

    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