Goldenseal: Hydrastis canadensis
- Botanical description, habitat, endangered species status, cultivation, history of its medicinal use and cultivation, and information about medicinal properties.
- http://b-and-t-world-seeds.com/goldroot.htm

Poisonous Plants of North Carolina: Hydrastis canadensis
- Descriptions and photos of the plant, with information about its potential toxicity.
- http://www.ces.ncsu.edu/depts/hort/consumer/poison/Hydraca.htm

Goldenseal - Hydrastis canadensis L.
- Illustrated description, including information about habitat and range.
- http://www.hort.purdue.edu/newcrop/herbhunters/goldenseal.html

Goldenseal
- Description, cultivation, and uses of the perennial herb Hydrastis canadensis, native to the northern and eastern forested regions of North America.
- http://www.hort.purdue.edu/newcrop/med-aro/factsheets/GOLDENSEAL.html

Hydrastis canadensis
- Photo, botanical description, and medicinal properties of the herb commonly known as goldenseal, ground raspberry or orange root.
- http://www.dominionherbal.com/herbs_month/Goldenseal.htm

Goldenseal's Future
- Discusses the commercial demand for Hydrastis canadensis and its potential effects on the survival of the species.
- http://www.herbphoto.com/education/monograph/goldenseal.html