1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia nuttalliana (Schult.) Hitchc.

        This species is accepted, and its native range is Subarctic Asia, Subarctic America to N. & W. Central U.S.A.

    [GB]
    Habit
    Perennial; caespitose. Culms 40-80 cm long. Ligule an eciliate membrane; 1-3 mm long; scaberulous on abaxial surface; obtuse. Leaf-blades flat, or involute; 1-2.5 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; 6-20 cm long. Primary panicle branches spreading; whorled at most nodes; 5-10 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
    Spikelets
    Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 1.3-2 mm long; 0.8 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblong; 1.5-2.5 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Fertile lemma oblong; 2.5-3.2 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins stopping well short of apex. Lemma apex erose; obtuse. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 0.7-1 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-temperate: Siberia and Soviet far east. North America: Subarctic, western Canada, eastern Canada, northwest USA, north-central USA, southwest USA, and south-central USA.
    Reference
    Poeae. =Puccinellia airoides. Fl Pac NW 1994.

    Distribution

    Native to:

    Alaska, Alberta, Arizona, British Columbia, California, Colorado, Greenland, Idaho, Kansas, Krasnoyarsk, Magadan, Maine, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, New York, North Dakota, Northwest Territorie, Nunavut, Ontario, Oregon, Primorye, Prince Edward I., Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming, Yakutskiya, Yukon

    Puccinellia nuttalliana (Schult.) Hitchc. appears in other Kew resources:

    First published in W.L.Jepson, Fl. Calif. 1: 162 (1912)

    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.
    • Probatova, N.S. & al. (2006). Flora Rossi?skogo Dal'nego Vostoka. Dopolneniya i izmeneniya k izdaniyu Sosudistye rasteniya sovetskogo Dal'nego Vostoka t. 1-8 (1985-1996): 1-454. Russian academy of sciences Far Eastern branch.

    Literature

    Kew Backbone Distributions
    • Marhold, K. (ed.) (2013). IAPT/IOPB chromosome data 16 Taxon 62: 1355-1360.
    • 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.
    • 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.

    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