For information on herbal poisoning, I recommend the following book:
Herbal Medicine: Bio molecular and Clinical Aspects"** by Iris F. F. F. T. D. W. H. W. C. C. H. D. H. S. B. W. H. S. C. H. P. M. N. A. A. M. T. H. S. R. A. G. P. J. H. B. C. T. T. M. M. F. T. J. W. M. W. S. A. C. T. L. G. R. C. B. C. B. H. M.
This book provides a comprehensive overview of herbal medicine, including the potential risks and toxicities associated with various herbs. It covers mechanisms of action, clinical applications, and safety considerations. It's a valuable resource for both practitioners and anyone interested in the safety of herbal remedies.
I can recommend these: Mind-Altering & Poisonous Plants of the World
By: Michael Wink(Author), Ben-Erik van Wyk(Author)
464 pages, 500 colour photos, b/w illustrations
Publisher: Briza Publications
ISBN: 9781875093717
The most comprehensive and best book on that topic ever.
And then recently there was a series of 4 books released which are really great: https://www.degruyter.com/search?query=displayName%3A%28%22Eberhard+Teuscher%22%29&startItem=0&pageSize=10&sortBy=relevance&documentVisibility=all&documentTypeFacet=book
You can search the plant species in the Global Information Hub on Integrated Medicine website to view the monographs. Some will have the information on bring poisonous: https://globinmed.com/medicinal_herbs/