What's the difference between adderwort and snakeweed?

Adderwort

Definition:

• (n.) The common bistort or snakeweed (Polygonum bistorta).

Example Sentences:

Snakeweed

Definition:

• (n.) A kind of knotweed (Polygonum Bistorta).
• (n.) The Virginia snakeroot. See Snakeroot.

Example Sentences:

• (1) Abortion in livestock from locoweeds, ponderosa pine needles, broom snakeweeds, fescue, and others are reported in studies.