The Atlas

Every line in this graph carries a grade. Most of what the internet says about herbs is folklore — useful, but not the same as evidence. Here you can see which is which.

What is in the Atlas

1,056 medicinal plants, each resolved to an accepted botanical name.
1,173 pharmacological actions — sedative, antispasmodic, anti-inflammatory and so on — separated into therapeutic and adverse.
1,557 conditions the literature associates with those plants.
64,061 graded relationships between them, each carrying citations.

How the evidence is graded

Every relationship is labelled with the strongest evidence behind it: a clinical trial on the whole plant, a trial on an extract, laboratory or animal work, or traditional use with no science reviewed. 23,171 relationships have laboratory or clinical evidence; 40,890 rest on tradition alone — and we say which is which rather than blurring the two. Claims trace back to 121 named references including the German Commission E monographs, the World Health Organization, Martindale and the PDR for Herbal Medicine.

Safety

141 plants are rated “do not self-administer” and are hidden by default everywhere on this site. You can ask to see them; we do not volunteer them.

Plants in the Atlas

Browse all medicinal plants by category

This information is for general wellness and educational purposes only and is not medical advice. Traditional use is not evidence of effectiveness. Consult a qualified healthcare provider before using any herb — especially if you are pregnant, nursing, or taking medication.