These sites are some of the best on the internet for researching medicinal uses of specific plants. These sources are used for the final project in the Foundations of Herbal Medicine program at our school. They are also helpful for anyone doing independent study in the field of herbal medicine.
http://oneearthherbs.squarespace.com/important-herbs-world/
http://www.herbcraft.org/articleindex.html
http://animacenter.org/allies.html
http://www.herbcraft.org/hoffmann.html
http://www.ryandrum.com/index.htm#articles
http://www.henriettes-herb.com/
http://medherb.com/Materia_Medica/materia_medica.htm
http://www.herbalremediesadvice.org/Herbs.html
https://www.theforagerspath.com/category/educational-resources/plant-profiles/
http://www.ncbi.nlm.nih.gov/pubmed/