Epilobium is a genus of flowering plants that belongs to the family Onagraceae. There are many synonyms for the name Epilobium, which includes Zauschneria, Ludwigia, and Chamerion. These are some of the synonyms commonly used instead of Epilobium to depict different species of plants within the Onagraceae family. The name Epilobium is derived from the Greek language, meaning "upon the pod." This refers to how the plant's seedpod grows on top of the flower stem. These plants are widely distributed around the world, and their species can vary from herbs to shrubs. They are known for their beautiful flowers and medicinal properties.