1. Family: Betulaceae Gray
    1. Genus: Alnus Mill.
      1. Species: Alnus incana (L.) Moench
        1. Alnus incana subsp. rugosa (Du Roi) R.T.Clausen

        This subspecies is accepted, and its native range is Central & E. Canada to N. Central & NE. U.S.A.

    Distribution

    Native to:

    Connecticut, Illinois, Indiana, Iowa, Labrador, Maine, Manitoba, Maryland, Masachusettes, Michigan, Minnesota, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Dakota, Nova Scotia, Nunavut, Ohio, Ontario, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, Vermont, Virginia, West Virginia, Wisconsin

    Introduced into:

    Czechoslovakia, Denmark, Germany, Poland, Sweden

    Alnus incana subsp. rugosa (Du Roi) R.T.Clausen appears in other Kew resources:

    First published in Cornell Univ. Agric. Exp. Sta. Mem. 291: 8 (1949)

    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