About Epilobium brachycarpum C.Presl
Epilobium brachycarpum C.Presl is a species of willowherb, with common names including tall willowherb, tall annual willowherb, panicled willowherb, and tall fireweed. It is native to North America: its native range covers Canada from Quebec to British Columbia, the western United States and the Dakotas, and southwestern and Central Mexico. It grows in a wide variety of open and woodland habitats, and has also been introduced to some areas in South America. This plant is a tall, glandular, hairy annual herb that can occasionally reach 2 metres (6 ft 7 in) in height. It grows as a somewhat gangly, thin erect weed, with narrow, curving, pointed leaves that reach up to a few centimetres in length. Its flowers have four petals; the petals may be so deeply notched that they appear to be four pairs. Petals are generally light purple or pink, with darker veining. The fruit produced by the plant is a capsule 1 to 3 centimetres (0.39 to 1.18 in) long.
