1. Family: Poaceae Barnhart
    1. Genus: Guadua Kunth
      1. Guadua amplexifolia J.Presl

        This species is accepted, and its native range is Central & S. Mexico to Colombia, Trinidad.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms 1000-2000 cm long; 60-100 mm diam.; woody. Culm-internodes terete; thick-walled, or solid; mid-green; distally glabrous. Lateral branches dendroid. Culm-sheaths glabrous; without auricles, or auriculate; setose on shoulders; shoulders with 4-8 mm long hairs. Culm-sheath blade lanceolate; 5-20 cm long; brown pubescent. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose. Leaf-sheath auricles falcate; 20-35 mm long. Ligule an eciliate membrane; 0.5 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 16-24 cm long; 30-51 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Synflorescence bractiferous; clustered at the nodes; in untidy tufts; lax; with glumaceous subtending bracts; prophyllate below lateral spikelets; leafy between clusters. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 6-10 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 35-60 mm long; 4-5 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 6-10 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 35-60 mm long; 4-5 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes several; 3-4 empty glumes; persistent; shorter than spikelet. Upper glume ovate; 4-8 mm long.
    Florets
    Fertile lemma ovate; 14-16 mm long; coriaceous; without keel; 21-25 -veined. Lemma surface glabrous, or pilose. Lemma apex apiculate. Palea 0.9 length of lemma. Palea keels winged; conspicuously winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3. Anthers 6; 6-7 mm long. Stigmas 3. Ovary umbonate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: Mexico. South America: Mesoamericana, northern South America, and western South America.
    Reference
    Bambuseae. Fl Meso-Am 1997.

    Distribution

    Native to:

    Colombia, Costa Rica, El Salvador, Honduras, Mexico Central, Mexico Gulf, Mexico Southeast, Nicaragua, Panamá, Trinidad-Tobago, Venezuela

    Guadua amplexifolia J.Presl appears in other Kew resources:

    First published in C.B.Presl, Reliq. Haenk. 1: 256 (1830)

    Accepted by

    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • 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
    • Baksh-Comeau, Y., Maharaj, S.S., Adams, C.D., Harris, S.A., Filer, D.L. & Hawthorne, W.D. (2016). An annotated checklist of the vascular plants of Trinidad and Tobago with analysis of vegetation types and botanical 'hotspots' Phytotaxa 250: 1-431.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • 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.

    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 2018. 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 2018. 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