JOE-PYE WEED Meaning of JOE-PYE WEED in English ■ noun a tall North American plant of the daisy family, with small purple flowers. [ Eupatorium purpureum and E. maculatum .]OriginC19: of unknown origin. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004