Tridax procumbens, commonly known as coatbuttons or tridax daisy, is a perennial herb that is considered a weed, originally native to the tropical Americas. It has naturalized in tropical and subtropical regions globally. This plant typically grows to a height of 10-30 cm and spreads to form a ground cover. It features daisy-like flowers with yellow centers and white petals that bloom throughout the year in its native range, providing a continuous display of modest flowers. The leaves are arrowhead-shaped, and the plant has a prostrate growth habit, often forming dense mats.

Coatbuttons are known for their resilience and ability to thrive in disturbed areas, making them a potential problem when grown outside their native habitat. They are often found in lawns, gardens, and along roadsides. In cultivation, they prefer full sun to partial shade and can tolerate a wide range of soil types, provided they are well-drained. While it is not typically cultivated for ornamental purposes due to its invasive nature, it is sometimes used for soil erosion control. However, caution is advised as it is listed as a noxious weed in the United States and can outcompete native vegetation.CC BY-SA 4.0