stoneroot means collinsonia canadensis, a perennial medicinal herb in the mint family, with a very hard root. Lexicurio rates it Rare gem — a strength score of 81 out of 100.
Etymology
From stone + root.
noun
- Collinsonia canadensis, a perennial medicinal herb in the mint family, with a very hard root.“Stoneroot is under the dominion of the Moon. It is used with good effect in chronic catarrh of the bladder, (as are other plants mentioned elsewhere,) whites, and weak stomach.”