FolkKB

Bitter-ash

Euonymus atropurpureus

Euonymus atropurpureus, commonly known as winterberry or burning bush, is a deciduous shrub traditionally found in East Asia. While its use in traditional medicine has not been extensively documented, studies have noted that spring phenophases occur earlier for this plant compared to trees, with native shrubs showing a 6-day advantage in full-leaf unfolded. A study identified 22 fungal species from diseased Euonymus japonicus specimens in Beijing, including three new pathogens for the plant, though no specific findings were recorded for E. atropurpureus itself. Research also indicated that 51 species and 14 infraspecific taxa of vascular plants have become extinct in the continental United States and Canada since European settlement, but this information does not pertain directly to E. atropurpureus. Scientific evidence regarding its specific effects is limited, with no clear relationships found between anatomical xylem characteristics and hydraulic conductivity between native and non-native woody species. No major safety issues or drug interactions have been recorded for Euonymus atropurpureus.

At a glance
Traditionally for
cathartic · anodyne
Traditions
Ayurveda · traditional · Western phytotherapy
Best evidence
D
Cautions
—

Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.

Traditional use

  • cathartic Ayurveda T3 DRDUKE
  • anodyne traditional T3 DRDUKE
  • bilious Ayurveda T3 DRDUKE
  • constipation Ayurveda T3 DRDUKE
  • dyspepsia traditional T3 DRDUKE
  • fever traditional T3 DRDUKE
  • hepatitis Ayurveda T3 DRDUKE
  • laxative traditional T3 DRDUKE
  • lice Western phytotherapy T3 DRDUKE
  • liver complaints traditional T3 DRDUKE
  • secondary syphilis traditional T3 DRDUKE
  • sores traditional T3 DRDUKE
  • stimulant traditional T3 DRDUKE
  • uterine complaints traditional T3 DRDUKE

What the science says

  • All three spring phenophases occurred 3 weeks earlier for shrubs compared to trees, with native shrubs showing a 6-day advantage in full-leaf unfolded. D PMID
  • The study suggests that 51 species and 14 infraspecific taxa of vascular plants have become extinct in the continental United States and Canada since European settlement. D PMID
  • The study found no relationship between anatomical xylem characteristics and hydraulic conductivity between native and non-native woody species. D PMID
  • The study identified 22 fungal species from diseased Euonymus japonicus specimens in Beijing, including three new pathogens for this plant. D PMID

Frequently asked questions

What is Bitter-ash?

Bitter-ash (Euonymus atropurpureus) is a plant documented in FolkKB's traditional-medicine reference, drawn from sourced literature and cross-checked against the evidence.

What is Bitter-ash traditionally used for?

Traditional sources record Bitter-ash for: cathartic, anodyne, bilious, constipation, dyspepsia, fever. This reflects traditional use, not a proven medical treatment.

Which traditions use Bitter-ash?

Bitter-ash appears in these traditions in our sources: Ayurveda, traditional, Western phytotherapy.

What does the scientific evidence say about Bitter-ash?

4 sourced findings are recorded for Bitter-ash; the strongest carries evidence grade D. For example: All three spring phenophases occurred 3 weeks earlier for shrubs compared to trees, with native shrubs showing a 6-day advantage in full-leaf unfolded.

How strong is the evidence for Bitter-ash?

The strongest finding for Bitter-ash carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).

Is Bitter-ash safe? What are the side effects?

No major safety issues are recorded for Bitter-ash in our sources, but the data may be incomplete. Consult a qualified professional before use.

Does Bitter-ash interact with medications?

No drug interactions are recorded for Bitter-ash in our sources. This does not rule them out — check with a pharmacist.

Is Bitter-ash 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

  1. T3 Dr. Duke's Ethnobotanical Database public domain (USDA ARS — attribute Dr. Duke's)
  2. T2 Contrasting xylem vessel constraints on hydraulic conductivity between native and non-native woody understory species. literature abstract metadata
  3. T2 Vascular plant extinction in the continental United States and Canada. literature abstract metadata
  4. T2 The Potential Fungal Pathogens of Euonymus japonicus in Beijing, China. literature abstract metadata
  5. T2 Characterizing spring phenology in a temperate deciduous urban woodland fragment: trees and shrubs. literature abstract metadata

More Euonymus plants