What's the difference between horseweed and stoneroot?

Horseweed

---

Definition:

• (n.) A composite plant (Erigeron Canadensis), which is a common weed.

Example Sentences:

Stoneroot

---

Definition:

• (n.) A North American plant (Collinsonia Canadensis) having a very hard root; horse balm. See Horse balm, under Horse.

Example Sentences: