Variability of salicylic glycosides in Salix purpurea

In the field of pharmacognosy, Salix purpurea (Purple Willow) is a significant medicinal plant primarily valued for its bark, which serves as a natural source of anti-inflammatory compounds. Its primary active constituent is salicin, a phenolic glycoside that acts as a precursor to salicylic acid, providing analgesic, antipyretic, and anti-rheumatic properties. The therapeutic efficacy of the bark is further enhanced by a complex profile of secondary metabolites, including flavonoids (such as naringenin and quercetin derivatives) and condensed tannins, which contribute antioxidant and astringent effects. These components work synergistically to treat conditions like joint pain, fever, and headaches while offering a lower risk of gastrointestinal irritation compared to synthetic aspirin. Beyond its chemical profile, the plant is characterized by its distinctive purplish young shoots and flexible branches, making it a robust species for both pharmaceutical extraction and ecological applications. Note: Original content is in French.