1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis nitidula Pilg.

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

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Rhizomes short. Culms erect; 27-50 cm long. Leaf-sheaths smooth, or scaberulous. Ligule an eciliate membrane; 5-9 mm long; acuminate. Leaf-blades conduplicate; 7-12 cm long; 1-2 mm wide; coriaceous; stiff. Leaf-blade surface scabrous. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; straight; 9-13 cm long; 1.5-2.5 cm wide. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous; glabrous, or puberulous.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5-1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5-1 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; light green, or purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 7-9 mm long; 1.2 length of adjacent fertile lemma; membranous; light green, or purple; 1-keeled. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 6-7.5 mm long; membranous; without keel. Lemma surface scaberulous. Lemma apex entire, or dentate; 2 -fid; obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 5.5-7 mm long overall; with twisted column. Rhachilla extension 2-2.6 mm long; villous; with 3-4.5 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. Tovar 1995.

    Distribution

    Native to:

    Bolivia, Peru

    Calamagrostis nitidula Pilg. appears in other Kew resources:

    First published in Bot. Jahrb. Syst. 42: 69 (1908)

    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
    • GBIF (2008- continuously updated). Global Biodiversity Information Facility http://www.gbif.org/.
    • 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