1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis elatior (Griseb.) A.Camus

        This species is accepted, and its native range is E. Himalaya to Assam.

    [GB]
    Habit
    Perennial. Culms erect; reed-like; 100-200 cm long. Lateral branches lacking. Leaf-sheaths glabrous on surface, or hirsute. Ligule an eciliate membrane. Leaf-blades 15-20 cm long; 8-15 mm wide; coriaceous. Leaf-blade midrib prominent beneath. Leaf-blade surface glabrous, or pubescent; hairy abaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; effuse; 15-30 cm long; 10-15 cm wide. Primary panicle branches spreading; whorled at lower nodes. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-5.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-5.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 5-5.5 mm long; 1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 4.5-5 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate, or ovate; 4-4.5 mm long; membranous; without keel; 5 -veined. Lemma surface scaberulous. Lemma apex dentate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1 way up back of lemma; geniculate; 7-8 mm long overall; with twisted column. Palea 4 mm long; hyaline; 2 -veined. Rhachilla extension pilose.
    Flowers
    Lodicules 2. Anthers 3; 2.5 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-tropical: India.
    Reference
    Aveneae. Fl Assam 1993.

    Images

    Distribution

    Native to:

    Assam, East Himalaya

    Calamagrostis elatior (Griseb.) A.Camus appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mar 10, 2012 Hooker, J.D. [s.n.], India K000838353 syntype
    Mar 10, 2012 Hooker, J.D. [2244], India K000838354 syntype
    Feb 14, 2012 Hooker, J.D. [s.n.], India K000098594 syntype
    Feb 14, 2012 Hooker, J.D. [s.n.], India K000098595 syntype
    Feb 14, 2012 Hooker, J.D. [s.n.], India K000098596 syntype
    Griffith [870], India Deyeuxia elatior K000098597 isotype

    First published in Bull. Soc. Bot. France 75: 555 (1928)

    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.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.

    Literature

    Kew Backbone Distributions
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    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