[[File:Achillea millefolium.jpg|thumb|350px|left|Achillea millefolium]]
Other names : Achillea millefolium, arrowroot, Asteraceae (family), bad man's plaything, carpenter's weed, Compositae (family), death flower, devil's nettle, eerie, field hops, gearwe, hundred leaved grass, knight's milefoil, knyghten, milefolium, milfoil, millefoil, noble yarrow, nosebleed, nosebleed plant, old man's mustard, old man's pepper, polyacetylenes, sanguinary, sesquiterpene lactones, seven year's love, snake's grass, soldier, soldier's woundwort, stanch weed, thousand seal, woundwort, yarroway, yerw.<br>See also : [[Bitters]]
==Special Precautions of Yarrow==
Yarrow is an essential oil that should be avoided during pregnancy because it can alter the way certain functions are carried out in your body, which may cause harm to the unborn baby.