Knapweed

Definition:

• (n.) The black centaury (Centaurea nigra); -- so called from the knoblike heads of flowers. Called also bullweed.

Compare knapweed with other words:

knapweed vs. snapweed

knapweed vs. knopweed

horseknop vs. knapweed

knapweed vs. thistle

centaurea vs. knapweed

knapweed vs. loggerheads

knapweed vs. weed