Pronunciation: ( jō"pī'), [key]
1. Also called purple boneset. a tall composite weed, Eupatorium purpureum, of North America, having clusters of pinkish or purple flowers.
2. Also called spotted joe-pye weed. a related plant, E. maculatum, having similar flowers and stems that are often spotted with purple.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.