Materia Medica

Devil's Claw (Harpagophytum procumbens) — Grapple Plant, Wood Spider
A guide to Devil’s Claw (Harpagophytum procumbens), covering Kalahari ecology, secondary-root use, traditional digestive and joint applications, evidence limits, gastrointestinal and medication cautions, and sustainability. Read more...
Eyebright (Euphrasia spp.) — Euphrasy, Casse-Lunette
A careful guide to Euphrasia spp. covering eyebright identification, traditional use, limited evidence, taxonomy uncertainty and a strong warning against homemade eye drops. Read more...
Goldenrod (Solidago canadensis) — Canada Goldenrod, Common Goldenrod
A guide to Solidago canadensis covering goldenrod identification, traditional urinary use, preparation, Asteraceae allergy and fluid-balance safety. Read more...