1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis avenoides (Hook.f.) Cockayne

        This species is accepted, and its native range is New Zealand.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 20-60 cm long. Leaf-sheaths ribbed; smooth. Ligule an eciliate membrane. Leaf-blades filiform; involute; 3-9 cm long; 0.5-1 mm wide. Leaf-blade surface smooth.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; 5-12 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5-0.7 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.5-0.7 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 primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 5-6 mm long; 1.1-1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent, or obscure. Upper glume surface smooth, or asperulous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 4.5-5 mm long; membranous; without keel. Lemma apex dentate; 2-4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33 way up back of lemma; geniculate; 4-6 mm long overall; with twisted column. Rhachilla extension 0.5 length of fertile floret; pilose.
    Flowers
    Lodicules 2. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    Australasia: New Zealand.
    Reference
    Aveneae. Cheeseman 1995.

    Images

    Distribution

    Native to:

    Chatham Is., New Zealand North, New Zealand South

    Calamagrostis avenoides (Hook.f.) Cockayne appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Buchanan, J. [2], New Zealand K000838386 Unknown type material
    Haast, J. [108], New Zealand K000838385 lectotype
    Kirk, T. [1168], New Zealand K000838387

    First published in Rep. Bot. Surv. Tongariro Natl. Park: 35 (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
    • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.

    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