Alpine Ragwort

OTHER NAME(S): Ragwort, Senecio Herb, Séneçon des Bois, Séneçon des Forêts, Séneçon Hercynien, Séneçon des Sarrasins, Senecio nemorensis, Hierba Cana Alpina, Séneçon Des Bois

Overview

Alpine ragwort (Senecio nemorensis) is a plant. The parts that grow above the ground are used to make medicine.

Alpine ragwort contains chemicals called pyrrolizidine alkaloids (PAs). Some of these chemicals are toxic and can cause serious liver damage. PAs are in different parts of the plant but are most concentrated in the roots.

People use alpine ragwort for diabetes, high blood pressure, and other conditions, but there is no good scientific evidence to support these uses. Using alpine ragwort can also be unsafe.

Don't confuse alpine ragwort with similarly named golden ragwort or tansy ragwort. These are not the same.

References
  1. WHO working group. Pyrrolizidine alkaloids. Environmental Health Criteria, 80. WHO: Geneva, 1988.
  2. Food and Drug Administration. FDA Advises Dietary Supplement Manufacturers to Remove Comfrey Products From the Market. July 6, 2001. Available at: https://www.cfsan.fda.gov/~dms/dspltr06.html.
  3. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46.
  4. Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
  5. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20.