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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis meridensis (Luces) Briceño

        This species is accepted, and its native range is NW. Venezuela.

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending; slender; 45 cm long. Culm-internodes smooth. Culm-nodes glabrous. Lateral branches sparse. Leaf-sheaths longer than adjacent culm internode; pubescent. Ligule an eciliate membrane; 1-2 mm long; lacerate; obtuse. Leaf-blades 7-15 cm long; 3-7 mm wide. Leaf-blade surface scabrous. Leaf-blade margins ciliate. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle; embraced at base by subtending leaf. Panicle open; ovate; 10-15 cm long. Primary panicle branches whorled at most nodes. Panicle branches capillary; flexuous; scaberulous. Spikelets appressed; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets elliptic; laterally compressed; 3.5-3.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus sparsely hairy, or pubescent.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets elliptic; laterally compressed; 3.5-3.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus sparsely hairy, or pubescent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 3.5-3.8 mm long; 1 length of upper glume; membranous; much thinner on margins; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface hispidulous. Lower glume apex acute. Upper glume lanceolate; 3.5-3.8 mm long; 1.5-1.6 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; 3 -veined. Upper glume surface hispidulous. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 2.2-2.5 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface hispidulous. Lemma apex entire; obtuse; muticous. Palea 0.25 length of lemma. Rhachilla extension 0.25 length of fertile floret; pilose.
    Flowers
    Lodicules 2; membranous. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    South America: northern South America.
    Reference
    Aveneae. Luces 1996.

    Distribution

    Native to:

    Venezuela

    Synonyms

    Other Data

    Calamagrostis meridensis (Luces) Briceño appears in other Kew resources:

    Bibliography

    First published in Bot. Ecol. Monocot. Páramos Venezuela 2: 590 (2010)

    Accepted by

    • (2019). https://doi.org/10.3897/phytokeys.122.33032 epublication.

    Literature

    Kew Backbone Distributions

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.

    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 2020. 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 2020. 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