1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca saximontana Rydb.

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

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Basal innovations intravaginal. Culms slender; 20-40 cm long. Culm-internodes distally glabrous. Ligule an eciliate membrane; obtuse. Leaf-blades involute; 3-10 cm long; 0.5 mm wide. Leaf-blade venation distinct.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 4-10 cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2 mm long; 0.66 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3.5 mm long; 0.75-1 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 3-5 mm long; chartaceous; without keel; 5 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn 1-2 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
    Distribution
    North America: western Canada, northwest USA, and north-central USA.
    Reference
    Poeae. Rydberg 2004.

    Images

    Distribution

    Native to:

    Alaska, Alberta, Arizona, British Columbia, California, Colorado, Greenland, Idaho, Iowa, Kansas, Labrador, Manitoba, Michigan, Minnesota, Montana, Nebraska, Nevada, New Mexico, New York, Newfoundland, North Dakota, Northwest Territorie, Nunavut, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming, Yukon

    Festuca saximontana Rydb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1979 McCalla, W.C. [2331], Alberta K000913320 isotype

    First published in Bull. Torrey Bot. Club 36: 536 (1909)

    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