1. Family: Poaceae Barnhart
    1. Dupontia R.Br.

      1. This genus is accepted, and its native range is Subarctic to Canada.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes elongated. Culms erect; 10-25 cm long. Ligule an eciliate membrane.
    Inflorescences
    Inflorescence a panicle. Panicle contracted. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Fertile
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Glume
    Glumes persistent; reaching apex of florets. Lower glume ovate; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1-1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma elliptic; membranous; much thinner above; keeled; 3-5 -veined. Lemma lateral veins obscure; less than two thirds length of lemma. Lemma apex obtuse, or cuspidate. Palea 1 length of lemma; 2 -veined.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum elliptic.
    Distribution
    Europe, or Temperate Asia, or North America.

    Distribution

    Native to:

    Alaska, Greenland, Kamchatka, Krasnoyarsk, Labrador, Magadan, Manitoba, North European Russi, Northwest Territorie, Nunavut, Ontario, Québec, Svalbard, West Siberia, Yakutskiya, Yukon

    Dupontia R.Br. appears in other Kew resources:

    First published in Chlor. Melvill.: 32 (1823)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of 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 2018. 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 2018. 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