Skip to main content
  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis brevipaleata Swallen

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

    [GB]
    Habit
    Perennial. Culms geniculately ascending; 85 cm long. Leaf-sheaths longer than adjacent culm internode; glabrous on surface. Ligule an eciliate membrane; 1 mm long; obtuse. Leaf-blades 10-25 cm long; 3 mm wide. Leaf-blade surface glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; oblong; interrupted; 15 cm long; 2 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 5.5-6.5 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein ciliolate. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 5.5-6.5 mm long; 1.1-1.3 length of adjacent fertile lemma; membranous; 1-keeled. Upper glume primary vein ciliolate. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 5 mm long; membranous; without keel; 5 -veined. Lemma lateral veins excurrent (1-2mm). Lemma surface glabrous. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 6-7 mm long overall; with 4-5 mm long limb. Palea 2 mm long; 2 -veined. Palea keels approximate. Rhachilla extension 1.3 mm long; pilose; with 1-2 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. Swallen 2002.

    Distribution

    Native to:

    Ecuador

    Synonyms

    Other Data

    Calamagrostis brevipaleata Swallen appears in other Kew resources:

    Bibliography

    First published in Contr. U.S. Natl. Herb. 29: 259 (1948)

    Not 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. [Cited as Calamagrostis hirta.]

    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