1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia vahliana (Liebm.) Scribn. & Merr.

        This species is accepted, and its native range is Subarctic to E. Canada.

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending, or decumbent; 6-12 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane; 2.5-4 mm long; erose; acute. Leaf-blades 3-5 cm long; 2-2.5 mm wide; yellowish green. Leaf-blade surface glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 3-5 cm long. Primary panicle branches ascending; 2 -nate. Panicle axis smooth. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; compressed slightly; 6-7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate.
    Fertile
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; compressed slightly; 6-7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume lanceolate; 3-3.5 mm long; 0.9 length of upper glume; membranous; purple; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume lanceolate; 3.5-4 mm long; 1 length of adjacent fertile lemma; membranous; purple; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Fertile lemma lanceolate; 3.5-4 mm long; membranous; much thinner above; purple; shiny; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy below. Lemma apex acute. Palea 3-3.5 mm long; 2 -veined. Palea keels scabrous; ciliate; adorned with hairs below. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 1-1.2 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 2 mm long. Hilum punctiform.
    Distribution
    Europe: northern and eastern. North America: Subarctic.
    Reference
    Poeae. Sorenson 1995.

    Images

    Distribution

    Native to:

    Alaska, Greenland, Labrador, Northwest Territorie, Nunavut, Québec, Svalbard, West Siberia, Yukon

    Puccinellia vahliana (Liebm.) Scribn. & Merr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Vahl, J. [s.n.], Norway K000789687

    First published in Contr. U.S. Natl. Herb. 13: 78 (1910)

    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.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    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.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    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