What is Epilobium hirsutum or Great Willowherb?

Botanical Name: Epilobium hirsutum.

Common Names: Great Willowherb, Hairy Willowherb, Fireweed, Rosebay Willowherb

Epilobium hirsutum is a medicinal plant that has been used for centuries to treat various ailments such as inflammation, urinary tract infections, skin irritations, enlarged prostate and diarrhea. It is native to Europe, Asia, and North America and is commonly found in meadows, pastures, and along roadsides.