
Billygoat-weed
Image: Thilanka and Nimali (cc-by-nc)
NameBillygoat-weed
Scientific NameAgeratum conyzoides
Common NamesBillygoat-weed, Goatweed, White weed, Tropic ageratum
Plant FamilyAsteraceae
Natural HabitatNative to Central and South America, but now a pantropical weed found in disturbed areas, agricultural fields, roadsides, and open forests worldwide.
Parts Usedleaf,flower,whole_plant
Medicinal Actionsanalgesic, anti-inflammatory, antimicrobial, antioxidant, astringent
Traditional UsesTraditionally used for treating wounds, cuts, burns, and skin infections due to its antimicrobial and anti-inflammatory properties. It is also employed for fever, colds, headaches, and various gastrointestinal issues in some traditional medicine systems.
Active ConstituentsFlavonoids, Alkaloids, Coumarins, Essential oils, Terpenoids
Preparation Methodsinfusion, decoction, tincture, poultice, powder, essential oil
Contraindications & WarningsContains pyrrolizidine alkaloids, which can be hepatotoxic with prolonged or high-dose internal use. Not recommended for pregnant or breastfeeding women, or individuals with pre-existing liver conditions.
Cultivation NotesThis plant is easily grown from seed and thrives in full sun to partial shade with well-drained soil. Often considered a weed, it can be invasive in many tropical and subtropical regions.
Raritycommon
Description
An annual herbaceous plant growing up to 1 meter tall, characterized by hairy stems and ovate, serrated leaves. It produces dense clusters of small, white to pale blue-lavender flowers with a distinctive fluffy appearance.





