EC 2002: Environment Canada. Species at Risk Act (SARA 2002), Schedule 1 "Threatened". Hydrastis canadensis (Goldenseal) [on line]. Ottawa: Canadian Wildlife Service, Environment Canada. [Accessed 2009 December 4]. Available from: http://www.sararegistry.gc.ca/search/advSearchResults_e.cfm?stype=species&lng=e&advkeywords=goldenseal&op=1&locid=0&taxid=0&desid=0&schid=0&