Willow

Scientific

Salix contains ~400 species — many of them prone to extensive natural hybridization, which makes the genus taxonomically difficult. Most are wetland or streambank species; willow roots stabilize watercourses and tolerate seasonal flooding in ways most trees cannot.

The bark and leaves of many willow species contain salicin, a glycoside that the body metabolizes into salicylic acid — the active anti-inflammatory and analgesic compound. Hippocrates documented willow-bark tea use ~2,400 years ago for pain and fever; the 1899 synthesis of acetylsalicylic acid (aspirin) by Bayer was a chemical modification of the willow’s natural compound.

Cultural

In Chinese painting and poetry, willows mark spring and farewell — willow branches were broken off and gifted at parting. In Japanese tradition, willow trees were said to harbor yokai (spirits) in their long drooping branches. In Hebrew tradition, willows are one of the four species (arba’a minim) of Sukkot. In Greek myth, the willow was sacred to Hecate.

The weeping willow as a graveyard / mourning tree image is European 18th–19th century — willow imagery on tombstones, mourning jewelry, and embroidery proliferated through the Romantic era.

Pussy willows (Salix discolor and related species) are sometimes used as substitutes for palm fronds on Palm Sunday in temperate regions where palms don’t grow.

See also

Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.

• Shares approach with: [[poplar]] · [[oak]] · [[wapato]] · [[sensitive-fern]] · [[royal-fern]] · [[pond-pine]]
• Member of: [[plants]]

Sources

• Wikipedia — Willow
• Aspirin history (Bayer corporate archives)

A plant entry in the 0mn1.one [[directory]].