Black Willow

Salix nigra

Salix nigra, commonly known as black willow, is a traditional medicinal plant native to North America. While its use in traditional medicine has not been extensively documented, it has shown promise in environmental applications and ecological studies. Scientific evidence suggests that Salix nigra can be effective in processing bauxite residue leachate volume without significantly affecting aerial biomass. Methane fluxes from the tree vary among species and are correlated with tissue pH and humidity, indicating that tissue pH may play a significant role in methane emissions. Hybridization between Salix nigra and its close relatives has been observed, accounting for up to 31% of the genome in hybrid-zone populations. The methanogenic and methane-oxidizing communities within different tree tissues also vary among species, influenced by plant traits such as tissue pH. No major safety issues or drug interactions have been recorded for Salix nigra.

At a glance
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

  • Salix nigra showed moderate performance in processing bauxite residue leachate volume without significantly differing aerial biomass compared to other species. D PMID
  • Tree methane fluxes varied among species, correlated with tissue pH and humidity, suggesting tissue pH as an important trait for methane emissions. D PMID
  • Significant hybridization between Salix nigra and its close relatives was observed, accounting for up to 31% of the genome in some populations. D PMID
  • Methanogenic and methane-oxidizing communities varied between Salix nigra tissues and among tree species, influenced by plant traits like tissue pH. D PMID

Frequently asked questions

What is Black Willow?

Black Willow (Salix nigra) 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 Black Willow?

4 sourced findings are recorded for Black Willow; the strongest carries evidence grade D. For example: Salix nigra showed moderate performance in processing bauxite residue leachate volume without significantly differing aerial biomass compared to other species.

How strong is the evidence for Black Willow?

The strongest finding for Black Willow carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).

Is Black Willow safe? What are the side effects?

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

Does Black Willow interact with medications?

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

What are the common names of Black Willow?

Black Willow is also known as: Ива чёрная, Saule noir.

Is Black Willow 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. T2 Divergence, hybridization, and diversification in an eastern North American willow syngameon. literature abstract metadata
  2. T2 Tissue humidity and pH as important species traits regulating tree methane emissions in floodplain wetland forests. literature abstract metadata
  3. T2 Pilot-scale evaluation of native plant-based constructed wetland performance in a cold climate. literature abstract metadata
  4. T2 Tree tissues and species traits modulate the microbial methane-cycling communities of the tree phyllosphere. literature abstract metadata