1. Family: Betulaceae Gray
    1. Genus: Alnus Mill.
      1. Species: Alnus incana (L.) Moench
        1. Alnus incana subsp. tenuifolia (Nutt.) Breitung

        This subspecies is accepted, and its native range is Alaska to New Mexico.

    Distribution

    Native to:

    Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Northwest Territorie, Oregon, Saskatchewan, Utah, Washington, Wyoming, Yukon

    Alnus incana subsp. tenuifolia (Nutt.) Breitung appears in other Kew resources:

    First published in Amer. Midl. Naturalist 58: 25 (1957)

    Accepted by

    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (1997). Flora of North America North of Mexico 3: 1-590. Oxford University Press, New York, Oxford.

    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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