1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis ecuadoriensis Laegaard

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

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Basal innovations intravaginal. Culms 20-30 cm long; 1 mm diam. Culm-internodes distally hispid. Leaf-sheaths longer than adjacent culm internode; striately veined; glabrous on surface. Ligule an eciliate membrane; 0.5-1 mm long; truncate. Leaf-blades involute; 3-7 cm long; 0.3-1 mm wide. Leaf-blade surface ribbed; grooved adaxially; puberulous; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 8-10 cm long; 1 cm wide. Panicle axis hispid. Spikelets solitary. Fertile spikelets pedicelled. Pedicels ciliate.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1-1.5 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1-1.5 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; purple; 1-keeled; keeled above; 3 -veined. Lower glume lateral veins obscure. Lower glume surface scabrous; glabrous. Lower glume apex erose; obtuse. Upper glume lanceolate; 3.5-4 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; keeled above; 3 -veined. Upper glume lateral veins obscure. Upper glume surface scabrous. Upper glume apex erose; obtuse.
    Florets
    Fertile lemma lanceolate; 3 mm long; membranous; without keel; 5 -veined. Lemma surface scabrous. Lemma apex obtuse; muticous. Palea 2 mm long. Palea keels scabrous. Rhachilla extension 1.5 mm long; pilose; with 1-1.5 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3; 0.8-1 mm long; purple. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. Laegaard 2001.

    Distribution

    Native to:

    Ecuador

    Calamagrostis ecuadoriensis Laegaard appears in other Kew resources:

    First published in Novon 8: 25 (1998)

    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.
    • 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.

    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