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

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

    [GB]
    Habit
    Perennial; culms solitary, or caespitose; clumped loosely. Rhizomes short. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms 30-85 cm long; 1.5-2 mm diam. Culm-internodes striate; smooth, or antrorsely scabrous. Culm-nodes brown. Leaf-sheaths striately veined; glabrous on surface. Ligule an eciliate membrane; 3 mm long; erose; obtuse. Leaf-blades flat, or involute; 15-30 cm long; 7 mm wide. Leaf-blade surface ribbed; grooved adaxially; glabrous; hairless except near base.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; interrupted; 12-19 cm long; 0.5-0.8 cm wide. Primary panicle branches appressed; 1 -nate. Panicle axis scaberulous. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
    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 glabrous.
    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 glabrous.
    Glume
    Glumes persistent; similar; reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; purple; 1-keeled; keeled above; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3.5-4 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; keeled above; 3 -veined. Upper glume primary vein scabrous. Upper glume lateral veins obscure. Upper glume surface scabrous; rough on veins. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 3.5-4 mm long; membranous; pallid; without keel; 5 -veined. Lemma surface scaberulous. Lemma apex erose; awned; 1 -awned. Principal lemma awn dorsal; arising 0.75 way up back of lemma; straight; 0.7-1 mm long overall; not or scarcely exserted from spikelet. Palea linear; 2.5 mm long. Rhachilla extension 0.7-1.2 mm long; pubescent.
    Flowers
    Lodicules 2. Anthers 1; 1.2 mm long; purple. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; trigonous; 1.8 mm long; light brown. Embryo 0.15 length of caryopsis. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. Laegaard 2001.

    Images

    Distribution

    Native to:

    Colombia, Ecuador

    Calamagrostis carchiensis Laegaard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1997 Laegaard, S. [54413], Ecuador K000308461 isotype

    First published in Novon 8: 23 (1998)

    Accepted by

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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