(Eupatorium purpureum and E. fistulosum--Gravel Root, Joe Pye Weed)
Queen of the meadow, or gravel root, has long, fibrous roots white or brownish color. It grows from three to six feet high, with pale reddish blossoms. It is found in wet ground, or near streams, though sometimes on high land.
This is a powerful diuretic, useful in all obstructions of the urinary organs. It is considered by those who have proved it, an unfailing remedy for the gravel. Used in strong decoction, freely.