Meadowsweet
Wikipedia reports “Filipendula ulmaria, commonly known as meadowsweet is a perennial herb in the family Rosaceae that grows in damp meadows. It is native throughout most of Europe and Western Asia (Near east and Middle east). It has been introduced and naturalised in North America.
In 1897, Felix Hoffmann created a synthetically altered version of salicin, derived from the species, which caused less digestive upset than pure salicylic acid. The new drug, formally acetylsalicylic acid, was named aspirin by Hoffman’s employer Bayer AG… This gave rise to the class of drugs known as non-steroidal anti-inflammatory drugs (NSAIDs).”