1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea amistadensis L.G.Clark, Davidse & R.P.Ellis

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 100-200(-500) cm long; woody; without nodal roots. Culm-internodes terete. Lateral branches dendroid; intravaginal. Branch complement three to several; in a horizontal line; thinner than stem. Culm-sheaths 5-10 cm long; glabrous; without auricles. Culm-sheath blade lanceolate; demarcated but persistent; erect; 1.5-2 cm long; glabrous on surface. Ligule an eciliate membrane; 10-44 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 6-20.5 cm long; 7-14 mm wide. Leaf-blade venation with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; loose; 6-26 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; curved; subterete; 4.3-7.3 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; curved; subterete; 4.3-7.3 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; 0.2-1.6 mm long; 1 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.2-1.6 mm long; 0.05-0.25 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; 2.4-4.9 mm long; (0.5-)0.66-0.75 length of fertile lemma; chartaceous. Lemma of upper sterile floret ovate; 2.9-5.4 mm long; chartaceous. Fertile lemma ovate; 4.3-6.9 mm long; coriaceous; without keel. Lemma margins involute; covering most of palea. Lemma apex acute, or 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
    South America: Mesoamericana.
    Reference
    Bambuseae. Fl Meso-Am 1997.

    Distribution

    Native to:

    Costa Rica, Panamá

    Chusquea amistadensis L.G.Clark, Davidse & R.P.Ellis appears in other Kew resources:

    First published in Natl. Geogr. Res. 5: 462 (1989)

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

    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

    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