Salix alba

White willow

Salix alba, commonly known as white willow, is a medicinal powerhouse renowned for its high concentration of salicin. Historically used to alleviate pain and reduce fever, this bark serves as the natural precursor to modern aspirin. It remains a vital botanical resource in traditional herbalism for managing inflammation and discomfort.

  • Scientific name: Salix alba
  • Family: Salicaceae
  • Native range: Europe

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. As a member of the subclass Magnoliidae and order Malpighiales, it is further categorized under the family Salicaceae. Finally, its scientific identity is defined by the genus Salix.

Rank Classification Source
Kingdom Plantae WCVP
Phylum Streptophyta WCVP
Class Equisetopsida WCVP
Subclass Magnoliidae WCVP
Order Malpighiales WCVP
Family Salicaceae WCVP
Genus Salix WCVP

Common Names

This plant, known scientifically as Salix alba, is referred to by various common names depending on the language and region. In Serbian (vec), it is called Salež da manech, while in Chinese, it is identified by the name 白柳 across multiple linguistic variants, including Simplified Chinese (zh-hans, zh-cn), Traditional Chinese (zh-hant), and the Cantonese variant used in Hong Kong (zh-hk).
Language Common Name Source
vec Salež da manech Wikidata
zh-hans 白柳 Wikidata
zh-hant 白柳 Wikidata
zh-hk 白柳 Wikidata
zh-cn 白柳 Wikidata
zh-sg 白柳 Wikidata
zh-tw 白柳 Wikidata
pl Wierzba biała Wikidata
eu Zume zuri Wikidata
udm Тӧдьы бадь Wikidata

Distribution

This plant, known as Salix alba, exhibits a widespread presence across several regions of Northern Europe. It can be found growing naturally throughout the country of Denmark. The species also thrives within the landscapes of Finland and Norway. Furthermore, its distribution extends to the islands of Great Britain and Ireland. These specific locations highlight the plant's preference for the temperate climates of the northern latitudes.

Region Area Source
Northern Europe Denmark WCVP
Northern Europe Finland WCVP
Northern Europe Great Britain WCVP
Northern Europe Ireland WCVP
Northern Europe Norway WCVP
Northern Europe Sweden WCVP
Middle Europe Austria WCVP
Middle Europe Belgium WCVP
Middle Europe Czechia-Slovakia WCVP
Middle Europe Germany WCVP

Plant Parts

This plant, known scientifically as Salix alba, is most highly valued for its therapeutic properties found within its outer layers. The primary medicinal component is the white willow bark, which is harvested from the tree to extract salicin, a precursor to aspirin. Specifically, the bark itself contains the necessary compounds to help alleviate pain and reduce inflammation. Whether referred to as White Willow Bark in herbal preparations or simply as white willow bark in botanical studies, this specific part of the plant remains a cornerstone of traditional and modern natural medicine.
Total parts
4
Scientific sources
6
Plant Part Sources Confidence
white willow bark 2 ★☆☆☆☆
bark 2 ★☆☆☆☆
White willow bark 1 ★☆☆☆☆
White Willow Bark 1 ★☆☆☆☆

Chemicals

Salix alba has 17 reported phytochemicals identified across 25 scientific publications and several other databases. The most consistently reported chemicals include salicin, flavonoids, tannins, salicylic acid, 1,2-decanediol.

Total chemicals
17
Scientific sources
25

Most Reported Compounds

Compound Sources Confidence
salicin 4 ★★☆☆☆
flavonoids 3 ★★☆☆☆
tannins 3 ★★☆☆☆
salicylic acid 2 ★☆☆☆☆
1,2-decanediol 1 ★☆☆☆☆
Kynurenic acid 1 ★☆☆☆☆
Salicin 1 ★☆☆☆☆
acetylsalicylic acid 1 ★☆☆☆☆
aspirin 1 ★☆☆☆☆
phenols 1 ★☆☆☆☆

Activities

Salix alba has 7 reported activities identified across 7 scientific publications and several other databases. The most consistently reported activities include Analgesic, Antacid, Antiangiogenic, Antiinflammatory, Antioxidant.

Total activities
7
Scientific sources
7

Most Reported Activities

Activity Sources Confidence
Analgesic 1 ★☆☆☆☆
Antacid 1 ★☆☆☆☆
Antiangiogenic 1 ★☆☆☆☆
Antiinflammatory 1 ★☆☆☆☆
Antioxidant 1 ★☆☆☆☆
Antipyretic 1 ★☆☆☆☆
Cytoprotective 1 ★☆☆☆☆

Medicinal Uses

Salix alba has 13 reported medicinal uses identified across 16 scientific publications and several other databases. The most consistently reported uses include pain, inflammation, acne vulgaris, antacid, central nervous system disorders.

Total uses
13
Scientific sources
16

Most Reported Uses

Use Sources Confidence
pain 3 ★★☆☆☆
inflammation 2 ★☆☆☆☆
acne vulgaris 1 ★☆☆☆☆
antacid 1 ★☆☆☆☆
central nervous system disorders 1 ★☆☆☆☆
fever 1 ★☆☆☆☆
fevers 1 ★☆☆☆☆
infection 1 ★☆☆☆☆
influenza A virus 1 ★☆☆☆☆
jaundice 1 ★☆☆☆☆