|Text Source:|| Britton, N.L. and A. Brown. 1970b. An Illustrated Flora of the Northern United States and Canada. Volume II. Dover Publications.
Foster, S. and J.A. Duke. 1990. A Field Guide to Medicinal Plants, Eastern and Central North America. The Peterson Field Guide Series. Houghton Mifflin Company, Boston.
White, D.J. 1991. Status Report on the Goldenseal, Hydrastis canadensis, L. COSEWIC. 25 pp.
|Ontario Map Source:||See White under text sources.|
|North American Map Source:||See White under text sources.|
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