Epilobium brachycarpum is a species of willowherb known by the common names Tall Willowherb, Tall Annual Willowherb, Panicled Willowherb and Tall Fireweed. It is native to and widespread in North America, where it is a resident of varied open and woodland habitats. It has also been introduced to some areas in South America. This is a tall glandular, hairy annual herb occasionally reaching two meters in height. It is somewhat gangly and thin like an erect...