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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis scabriflora Swallen

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 120 cm long. Culm-internodes distally glabrous, or pubescent. Leaf-sheaths subequal to internodes; without keel; smooth, or scaberulous. Ligule a ciliolate membrane; 2 mm long. Leaf-blades tapering towards sheath, or parallel-sided; 30-60 cm long; 5 mm wide; stiff. Leaf-blade surface glabrous. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; dense; 25 cm long; 1-1.5 cm wide. Primary panicle branches appressed; whorled at most nodes; 4-8 cm long. Spikelets solitary. Fertile spikelets sessile, or sessile and pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3-3.2 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5 mm long; 0.15 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3-3.2 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5 mm long; 0.15 length of lemma.
    Glume
    Glumes persistent; similar; reaching apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 3-3.22 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3-3.2 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 3 mm long; membranous; without keel; 5 -veined. Lemma surface scabrous. Lemma apex awned; 1 -awned. Principal lemma awn dorsal; arising 0.33 way up back of lemma; straight; 1.7 mm long overall; with twisted column. Palea 1 length of lemma. Rhachilla extension 0.8 mm long; pilose.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: northern South America.
    Reference
    Aveneae. Swallen 2004.

    Distribution

    Native to:

    Venezuela

    Other Data

    Calamagrostis scabriflora Swallen appears in other Kew resources:

    Bibliography

    First published in Contr. U.S. Natl. Herb. 29: 260 (1948)

    Accepted by

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • 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

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.

    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