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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis spruceana (Wedd.) Hack. ex Sodiro

        This species is accepted, and its native range is Ecuador.

    [GB]
    Habit
    Perennial; caespitose. Culms 30-60 cm long. Leaf-sheath auricles erect; 2-3 mm long. Ligule an eciliate membrane; 1-1.5 mm long. Leaf-blades conduplicate; 10-25 cm long; 1.5-2 mm wide; coriaceous; stiff. Leaf-blade surface smooth. Leaf-blade apex abruptly acute.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; lanceolate; dense; 9-17 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Glume
    Glumes persistent; similar; exceeding apex of florets. Lower glume lanceolate; 3-3.5 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex acute. Upper glume lanceolate; 3-3.5 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 3-3.5 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 4-5 mm long overall; with a straight or slightly twisted column. Rhachilla extension 3-3.5 mm long; 1 length of fertile floret; pilose; hairy throughout; with 0.5 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. WDC 2001.

    Distribution

    Native to:

    Ecuador

    Synonyms

    Other Data

    Calamagrostis spruceana (Wedd.) Hack. ex Sodiro appears in other Kew resources:

    Bibliography

    First published in Anales Univ. Centr. Ecuador 3(25): 481 (1889)

    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.

    Literature

    Kew Backbone Distributions

    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.

    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