The internet is awash with unreliable information about herbal medicine. These are some trusted websites for those who want to read further or are interested in studying herbal medicine.
The College of Practitioners of Phytotherapy: https://thecpp.uk/
Herbal Reality (a great resource for information about herbs, herbalists and herbalism): https://www.herbalreality.com/
Beneficial Plant Research Association (herb enthusiasts in the US dedicated to promoting research and understanding of herbs): https://www.bpra.org/
The European Herbal & Traditional Medicine Practitioners Association: http://ehtpa.org/
Betonica School of Herbal Medicine (for short introductory courses in herbal medicine, as well as full training to become a qualified medical herbalist): https://www.betonica.co.uk/
The Journal of Herbal Medicine: https://www.sciencedirect.com/journal/journal-of-herbal-medicine
Herbal History Research Network blog (for articles about researching the history of herbal medicine): https://www.herbalhistory.org/home/blog/