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This subspecies is accepted, and its native range is S. Greenland, Canada to Mexico (Coahuila).

Native to:

Alberta, Arizona, British Columbia, California, Colorado, Greenland, Idaho, Illinois, Maine, Mexico Northeast, Michigan, Montana, Nevada, New Brunswick, New Hampshire, New Mexico, New York, Newfoundland, Nova Scotia, Oklahoma, Oregon, Pennsylvania, Québec, Rhode I., Saskatchewan, South Dakota, Texas, Utah, Vermont, Washington, Wisconsin, Wyoming

Dryopteris filix-mas subsp. brittonii Fraser-Jenk. & Widén appears in other Kew resources:

First published in Advances Forest. Res. India 29: ? (2006)

Accepted by

  • Roskov Y. & al. (eds.) (2018). World Ferns: Checklist of Ferns and Lycophytes of the World Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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