Meadowsweet (Filipendula ulmaria) is a beautiful white-flowered plant of wet meadows, riverbanks, and ditches in the British Isles and across Northern Europe. It flowers through July and August, filling the summer air with a honey-sweet, slightly almond-like fragrance that is one of the most pleasant in the hedgerow calendar. It is also one of the most historically significant plants in the development of Western pharmacology.
The Aspirin Connection
Salicylate compounds (salicylic acid and methyl salicylate) found in meadowsweet were among the chemical precursors that led to the synthesis of aspirin (acetylsalicylic acid) in the 19th century. The name aspirin actually derives from the old botanical name for meadowsweet (Spirea ulmaria), making the plant’s contribution to the most widely used drug in the world literally etymological as well as chemical.
However, this is where the story becomes interesting from an herbalist’s perspective: while isolated aspirin can cause gastric bleeding and irritation, meadowsweet in whole plant preparations is used specifically as a gastric protective herb, soothing acid stomachs and protecting the gastric mucosa. The mucilaginous and tannin-containing compounds in the whole plant appear to buffer and modify the salicylate activity in ways that the isolated compound does not have. This is a clear example of the synergy argument for whole plant preparations that herbalists often make.
Its Uses
Meadowsweet is the primary herb for the acid stomach, gastritis, and acid reflux pattern in European herbalism. It is also anti-inflammatory (through its salicylate content), analgesic, gently diuretic, and has antimicrobial properties relevant to the gut. It was used historically for fevers (where its diaphoretic and anti-inflammatory properties are relevant), for rheumatic complaints, and as a digestive herb throughout the summer season.
How to Work With It
Meadowsweet tea made from the dried aerial flowering parts is the most common preparation, appropriately used for acid stomach and digestive inflammation. It is also a good addition to anti-inflammatory tea blends for musculoskeletal pain. Avoid use during pregnancy and exercise caution in those with salicylate sensitivity. The Herbalist Codex app has the full profile with its phytochemistry, research, and the complete story of its relationship to the development of aspirin.