1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia arctica (Hook.) Fernald & Weath.

        This species is accepted, and its native range is Subarctic America.

    [GB]
    Habit
    Perennial; caespitose. Culms 10-55 cm long. Ligule an eciliate membrane; 1-2.5 mm long; glabrous on abaxial surface, or scaberulous on abaxial surface. Leaf-blades flat, or conduplicate, or involute; 4-9 cm long; 0.5-2.5 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate, or elliptic; 5-15 cm long. Primary panicle branches ascending, or spreading. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3.6-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3.6-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 0.8-1.5 mm long; 0.5-0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume oblong; 1.5-2 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Fertile lemma oblong; 1.9-2.7 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins stopping well short of apex. Lemma surface pubescent; hairy at base. Lemma apex erose; obtuse. Palea 0.9 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 0.5-1.1 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    North America: Subarctic.
    Reference
    Poeae. Fl Alaska 1994.

    Images

    Distribution

    Native to:

    Alaska, Greenland, Northwest Territorie, Nunavut, Yukon

    Puccinellia arctica (Hook.) Fernald & Weath. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Richardson [15], Northern America K000789650
    Holm, T.H. [s.n.], Greenland K000789651

    First published in Rhodora 18: 5 (1916)

    Accepted by

    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • 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
    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

    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 2019. 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 2019. 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