Coatbuttons

Coatbuttons (Tridax procumbens) is a sprawling annual or short-lived perennial herb in the family Asteraceae, native to Mexico and Central America but naturalised throughout tropical and subtropical regions worldwide as one of the most common pantropical weeds. It grows in disturbed habitats including roadsides, pathways, waste ground, agricultural margins, and coastal areas, thriving in full sun and drought-prone conditions. The plant bears small, yellow flowerheads with white or pale ray florets, producing achene fruits with a feathery pappus that aids wind dispersal. Coatbuttons is considered an agricultural weed in many countries, competing with crops and pasture grasses, but also has recognised ethnomedicinal uses across Asia, Africa, and Latin America, where preparations from the leaves are applied to wounds and used as anti-inflammatory treatments in traditional medicine systems. Scientific studies have investigated antimicrobial, antifungal, and antioxidant properties. Its IUCN status is Not Evaluated. As a cosmopolitan weed, coatbuttons presents no conservation concern and is unlikely to face population decline given its adaptability to disturbed environments.