Echinacea
Links
Echinacea - The Herbal Therapeutics Manual Online
http://www.divinefarmer.com/h_t_manual/echin.html
Database of facts and research about Echinacea purpurea, including traditional uses, energetics, contraindications, and UpS alternatives.
Prairie Medicinal and Aromatic Plants Conference: Echinacea
http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/crop7192#b
Alberta, Canada government pages including plant description, part used, constituents, mode of action, dosage, and toxicity.