Hollow Joe-Pye weed, (Eutrochium fistulosum)

''Eutrochium fistulosum'' , also called hollow Joe-Pye weed, trumpetweed, or purple thoroughwort, is a flowering plant in the family Asteraceae, native to eastern North America, in southeast Canada and throughout the eastern and central United States. The species name ''fistulosum'' refers to the tubular stem; see fistula.

It is a herbaceous perennial plant growing to 1.5–3 m tall, found in moist, rich soil alongside ditches and marshes, or in wet forests. It flowers from mid-summer.. more