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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis malamalensis Hack.

        This species is accepted, and its native range is Bolivia to NW. Argentina.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Culms erect; 20-30 cm long; 1 -noded. Leaf-sheaths scaberulous. Ligule an eciliate membrane; 3-4 mm long; acuminate. Leaf-blades filiform; convolute; 8-20 cm long; 0.5 mm wide. Leaf-blade surface scaberulous; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 10-20 cm long. Primary panicle branches spreading; whorled at most nodes. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 6-7 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; 6-7 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; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 6-7 mm long; 1.7 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 3.5-4 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1 way up back of lemma; geniculate; 5-5.5 mm long overall; with twisted column. Palea 3 mm long. Rhachilla extension 1 mm long; pilose.
    Flowers
    Lodicules 2. Anthers 3; 1.8-2 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; lanceolate; 1.8 mm long. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    South America: western South America and southern South America.
    Reference
    Aveneae. Turpe 1995.

    Distribution

    Native to:

    Argentina Northwest, Bolivia

    Synonyms

    Other Data

    Calamagrostis malamalensis Hack. appears in other Kew resources:

    Bibliography

    First published in Anales Mus. Nac. Buenos Aires, ser. 3, 6: 478 (1906)

    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

    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    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