Achillea millefolium (yarrow or common yarrow) is a flowering plant in the family Asteraceae, which is grown in temperate regions of the Northern Hemisphere. In New Mexico and southern Colorado, it is called plumajillo, or 'little feather', for the shape of the leaves. In antiquity, yarrow was known as herbal militaris, for its use in staunching the flow of blood from wounds. Other common names for this species include gordaldo, nosebleed plant, old man's pepper, devil's nettle, sanguinary, milfoil, soldier's woundwort, thousand-leaf, and thousand-seal. A. millefolium is an erect herbaceous perennial plant that produces one to several stems (0.2 to 1 m tall) and has a rhizomatous growth form. Leaves are evenly distributed along the stem, with the leaves near the middle and bottom of the stem being the largest. The leaves have varying degrees of hairiness (pubescence).
Contributions by 4hodmt, JoJan, and Hardyplants.