Yarrow. Achillea millefolium L.

Figure 125.—Yarrow (Achillea millefolium)

Other Common Names

Millefolium, milfoil, thousand-leaf, thousand-leaf clover, gordoloba, green arrow, soldiers' woundwort, nosebleed, dog daisy, bloodwort, sanguinary, carpenter grass, old-man's-pepper, cammock.

Habitat And Range

Yarrow is very common along roadsides and in old fields, pastures, and meadows in the eastern and central United States and Canada. Closely related forms occur in the Western States


This weed is from 10 to 20 inches high and has many finely divided, feathery dark-green leaves. From June to September the plant produces flat-topped panicles consisting of numerous small, white flower heads. It has a strong odor.

Part Used

The tops, collected when the plant is in flower.