1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia tenella (Lange) Holmb.

        This species is accepted, and its native range is Subarctic to NE. U.S.A.

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending, or decumbent, or prostrate; 5-30 cm long. Ligule an eciliate membrane; 1-3 mm long; truncate, or obtuse. Leaf-blades flat, or involute; 4-7 cm long; 1-2 mm wide.
    Inflorescences
    Inflorescence a panicle; subtended by an unspecialized leaf-sheath, or an inflated leaf-sheath. Panicle open, or contracted; oblong, or ovate; 3-12 cm long. Primary panicle branches ascending, or spreading, or reflexed; 2-6 -nate. Spikelets solitary. Fertile spikelets pedicelled. Pedicels tip widened.
    Spikelets
    Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated between glumes.
    Glume
    Glumes persistent; dissimilar; shorter than spikelet. Lower glume lanceolate, or oblong; 0.5-1.5 mm long; 0.4-0.7 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex erose; truncate, or acute. Upper glume ovate; 1.2-2.1 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Fertile lemma oblong, or ovate, or obovate; 2-3 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy below; hairy on veins. Lemma apex erose; truncate, or obtuse. Palea 1 length of lemma; 2 -veined. Palea keels scabrous; eciliate; adorned below. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 0.5-1 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 1.4-1.6 mm long. Hilum punctiform.
    Distribution
    Europe: northern and eastern. Asia-temperate: Siberia and Soviet far east. North America: Subarctic, western Canada, and eastern Canada.
    Reference
    Poeae. Circumpolar Fl 1994.

    Distribution

    Native to:

    Alaska, Connecticut, Greenland, Krasnoyarsk, Labrador, Magadan, Maine, Manitoba, Masachusettes, New Brunswick, New Hampshire, New York, Newfoundland, North European Russi, Northwest Territorie, Nova Scotia, Nunavut, Ontario, Prince Edward I., Québec, Rhode I., Svalbard, Vermont, West Siberia, Yakutskiya

    Puccinellia tenella (Lange) Holmb. appears in other Kew resources:

    First published in Meddel. Grønland 58: 45 (1926)

    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.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.
    • 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.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.
    • 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

    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