
Tropical Whiteweed
Image: Thilanka and Nimali (cc-by-nc)
NameTropical Whiteweed
Scientific NameAgeratum conyzoides
Common NamesGoat Weed, Tropical Whiteweed, Billygoat-weed, Chick Weed
Plant FamilyAsteraceae
Natural HabitatNative to Central and South America, now a pantropical weed found in disturbed areas, agricultural fields, roadsides, and open forests.
Parts Usedwhole_plant,leaf,flower
Medicinal Actionsanti-inflammatory,antimicrobial,antioxidant,analgesic,astringent
Traditional UsesTraditionally used in various folk medicines for treating wounds, burns, skin infections, fever, colds, headaches, and gastrointestinal issues. It is also applied topically for its anti-inflammatory and antiseptic properties.
Active ConstituentsFlavonoids, coumarins, alkaloids, essential oils (e.g., ageratochromene), terpenoids
Preparation Methodsinfusion,decoction,poultice,powder
Contraindications & WarningsMay cause liver damage with prolonged internal use due to pyrrolizidine alkaloids. Not recommended for pregnant or breastfeeding women. Allergic reactions are possible.
Cultivation NotesEasily grows from seed in warm climates. Prefers full sun to partial shade and moist, well-drained soil. Can become invasive if not managed.
Raritycommon
Description
A herbaceous annual plant growing up to 1 meter tall, characterized by hairy stems and ovate, serrated leaves. It produces small, fluffy white to pale blue flower heads clustered in terminal corymbs.




