Yarrow (scientific name: Achillea) is the name of a genus of the Asteraceae family.

The genus Achillea has multiple species. One of them, Achillea wilhelmsii, with its yellow leaves, is found in most regions of Iran, including the center.

Its flowers and dried leaves are the parts used. Yarrow contains a blue oil created from the distillation of the matricin present in it. Yarrow contains alkaloids, achillin, tannins, a small amount of vitamin A, a blood coagulant, a type of heteroside, phytosterols, and other substances.

General properties: Anti-inflammatory, antipyretic, antispasmodic, soothing for stomach pains, digestive stimulant, stomach tonic, anti-flatulent, laxative, cholagogue, appetite stimulant, strong antimicrobial, antiviral, antibacterial, antiparasitic, mouthwash, disinfectant, urinary tract antiseptic, diuretic, diaphoretic, pain reliever, astringent, anti-allergy, anti-inflammatory, expectorant, vasodilator, blood pressure reducer, cerebral and arterial thrombosis, varicose vein strengthener, wound and surgical healer, blood coagulant, menstruation regulator, menstrual blood flow reducer and pain reliever, hemorrhoid reliever, anti-dandruff, skin moisturizer.

Drinking its brewed tea is beneficial for easy childbirth, applying yarrow oil to joints relieves joint pain. Drinking 4 grams of yarrow brewed in 150 ml of boiling water after meals is beneficial for insomnia, and brewing 2 grams of yarrow in 100 ml of water is nerve tonic.