Botanical Overview
Commonly known as Yarrow, this species belongs to the Asteraceae family. Traditional healers across continents have independently recognized the medicinal value of this species, leading to one of the most extensive ethnobotanical records available. The daisy family (Asteraceae) is one of the largest plant families, characterized by composite flower heads (capitula) that contain many small florets surrounded by bracts. Plants range from tiny alpine herbs to large tropical trees. The family includes many medicinally important species with bitter compounds and essential oils.
General Description
Growing to 1 metre (3+1⁄3 feet) tall, it is characterized by small whitish flowers, a tall stem of fernlike leaves, and a pungent odor. The plant is native to temperate regions of Eurasia and North America. It has been introduced as feed for livestock in New Zealand and Australia. It has some potential uses, including in traditional medicine.
Family Context
The Asteraceae family is extremely large and diverse. Notable medicinal members include:
- Gobo — 63 documented uses
- Mugwort — 55 documented uses
- Sunflower — 52 documented uses
- Hsi Chien — 52 documented uses
Geographic Distribution
Yarrow has been recorded in 10 countries and territories worldwide, including Belgium, Germany, Denmark, Finland, France, and others.
Traditional Uses
Yarrow has been traditionally used for digestive health, respiratory conditions, and skin and wound care, among other applications.
Digestive health.
- Carminative
- Colic
For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.
Respiratory conditions.
- Cold
Respiratory conditions are addressed through steam inhalation of the herb’s vapors or internal use as a warm tea. The hot infusion acts as an expectorant, helping to loosen phlegm and clear congestion. Some traditions combine it with honey for coughs.
Skin and wound care.
- Wound
- Rash
- Sore
For skin conditions, the fresh or dried plant is applied topically as a poultice, wash, or compress. A strong decoction can be used to clean wounds and sores. The antimicrobial properties help prevent infection while promoting tissue repair.
Active Compounds
Phytochemical research has identified 30 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).
The identified compounds include the following categories:
- Flavonoid: antioxidant compounds that protect cells from oxidative damage
- Alkaloid: nitrogenous compounds with diverse pharmacological activities