Gravel Root goes by numerous aliases; in addition to its scientific name, Eupatorium purpureum , it is commonly known as gravelweed, kidneywort, purple boneset and jopai weed - reportedly after an Algonquin Indian from New England whose name was Jopai ("Joe Pye"), a shaman who became known for curing complaints with the use of Native American herbs like cut Gravel Root.
Botanical Name: Eupatorium purpureum
Common Name: Gravelweed, Joe-Pye Weed, purple boneset, trumpet weed, kidney root 
Warning: For external use only. Not to be used during pregnancy. Not to be used while nursing. Do not apply to broken or abraded skin.
California Proposition 65 WARNING
(only pertains to the following product)
Organic Gravel Root C/S
Organic Gravel Root Powder
* This statement has not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.