Common Ragwort
Jacobaea vulgaris
Jacobaea vulgaris, commonly known as tansy ragwort, is a plant native to Europe and Asia that has been studied for its ecological impact. Traditionally, there are no recorded uses of Jacobaea vulgaris in any medicinal or traditional practices. Scientific evidence indicates that certain bacteria, such as Serratia plymuthica and Pseudomonas brassicacearum, negatively affect the root growth of Jacobaea vulgaris through bacterial cell activity and volatile emissions. Pyrrolizidine alkaloids from tansy ragwort have been shown to cause minor liver changes in dairy cows exposed to short-term pyrrolizidine alkaloid exposure; however, there is no clear evidence of significant effects on energy metabolism indicators. Additionally, the study found that these compounds can be transferred to cow's milk, with concentrations up to 3.44 µg/l observed in the highest exposure group. Jacobaea vulgaris does not appear to benefit from increased genetic diversity under tested conditions and life stages. There are no major safety concerns or recorded drug interactions associated with this plant.
- Best evidence
- D
- Cautions
- —
Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.
What the science says
- Short-term exposure to pyrrolizidine alkaloids from tansy ragwort caused minor liver changes but did not significantly affect energy metabolism indicators in dairy cows.
- The study found no clear beneficial effect of increasing genetic diversity on Jacobaea vulgaris populations across all tested conditions.
- Both Serratia plymuthica and Pseudomonas brassicacearum significantly reduced Jacobaea vulgaris root growth through cell activity and volatile emissions, with non-specific negative impacts on various plants.
- The study found that pyrrolizidine alkaloids from tansy ragwort were transferred to cow's milk, with concentrations up to 3.44 µg/l in the highest exposure group.
Frequently asked questions
What is Common Ragwort?
Common Ragwort (Jacobaea vulgaris) is a plant documented in FolkKB's traditional-medicine reference, drawn from sourced literature and cross-checked against the evidence.
What does the scientific evidence say about Common Ragwort?
4 sourced findings are recorded for Common Ragwort; the strongest carries evidence grade D. For example: Short-term exposure to pyrrolizidine alkaloids from tansy ragwort caused minor liver changes but did not significantly affect energy metabolism indicators in dairy cows.
How strong is the evidence for Common Ragwort?
The strongest finding for Common Ragwort carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).
Is Common Ragwort safe? What are the side effects?
No major safety issues are recorded for Common Ragwort in our sources, but the data may be incomplete. Consult a qualified professional before use.
Does Common Ragwort interact with medications?
No drug interactions are recorded for Common Ragwort in our sources. This does not rule them out — check with a pharmacist.
What are the common names of Common Ragwort?
Common Ragwort is also known as: Herbe de Saint-Jacques.
Is Common Ragwort a proven treatment?
No. FolkKB is informational only. Traditional use and early findings are not proof of efficacy or safety — consult a qualified professional and never self-treat.
Sources
- T2 Short-term exposure of dairy cows to pyrrolizidine alkaloids from tansy ragwort (Jacobaea vulgaris Gaertn.): effects on organs and indicators of energy metabolism. literature abstract metadata
- T2 Dose-response study on the transfer of pyrrolizidine alkaloids from a tansy ragwort extract (Jacobaea vulgaris Gaertn.) to bovine milk. literature abstract metadata
- T2 Dissecting negative effects of two root-associated bacteria on the growth of an invasive weed. literature abstract metadata
- T2 An Established Plant Invader May Still Benefit From Increasing Genetic Diversity-Insights From Artificial Populations in a Common Garden Experiment. literature abstract metadata