Citation

USDA 2005: United States Department of Agriculture, Agricultural Research Service, National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Hydrastis candensis L. National Germplasm Resources Laboratory, Beltsville (MD). [Accessed 2008 April 1]. Available from: http://www.ars-grin.gov/cgi-bin/npgs/html/tax_search.pl