Is there confusion between Achillea millefolium and Achillea ptarmica?

Answer 1

The term yarrow is typically placed on the species Achillea millefolium. The plant has frilly, multi-lobed delicate leaves. They are highly aromatic and have flowers that can be white, yellow, orange, pink or red. Achillea ptarmica is called double yarrow, or sneezewort. The flowers look like clusters of tiny cotton balls, rather that the traditional daisy shape of achillea millefolium.