Butterweed
Erigeron canadensis
Erigeron canadensis, commonly known as Eastern Canada Fleabane or Canadian Fleabane, is a plant traditionally not associated with specific medicinal uses in any particular tradition. While its traditional use remains undocumented, studies have explored aspects of its genetic diversity and spread patterns. Research indicates that E. canadensis maintains similar levels of genetic diversity both in native and non-native ranges, though some genotypes contribute more significantly to its invasive nature. The presence of co-invasive species increases plant diversity but also enhances community invasibility. Notably, Erigeron canadensis showed stronger city-level genetic differentiation compared to other species; however, no overall pattern emerged for widespread cosmopolitan plants in the study examining 4773 invasive plant occurrence records. Safety concerns do not appear significant, and there are no recorded drug interactions 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
- The study found that E. canadensis populations maintained similar genetic diversity both in native and non-native ranges, with some genotypes contributing disproportionately to its spread.
- Erigeron canadensis showed stronger city-level genetic differentiation compared to other species, but overall most species exhibited limited population structure.
- The study documented 4773 invasive plant occurrence records, with Erigeron canadensis being one of the most frequently recorded species.
- Co-invasion by three Asteraceae species increased plant diversity but also community invasibility.
Frequently asked questions
What is Butterweed?
Butterweed (Erigeron canadensis) 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 Butterweed?
4 sourced findings are recorded for Butterweed; the strongest carries evidence grade D. For example: The study found that E. canadensis populations maintained similar genetic diversity both in native and non-native ranges, with some genotypes contributing disproportionately to its spread.
How strong is the evidence for Butterweed?
The strongest finding for Butterweed carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).
Is Butterweed safe? What are the side effects?
No major safety issues are recorded for Butterweed in our sources, but the data may be incomplete. Consult a qualified professional before use.
Does Butterweed interact with medications?
No drug interactions are recorded for Butterweed in our sources. This does not rule them out — check with a pharmacist.
What are the common names of Butterweed?
Butterweed is also known as: Мелколепестник канадский.
Is Butterweed 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 Quantitative abundance and distribution data from the first systematic survey of alien invasive plants in the Xiaoxing'an Mountains, China (2022-2023). literature abstract metadata
- T2 Genetic Diversity and Population Structure in Cities Is Not Consistent Among Cosmopolitan Plant Species. literature abstract metadata
- T2 Co-invasion of three invasive alien plants increases plant taxonomic diversity and community invasibility. literature abstract metadata
- T2 Population Genomics of a Cosmopolitan Weed Provides Insights Into Its Local Adaptation and Recent Demographic History. literature abstract metadata