Tridax procumbens, commonly known as coatbuttons or tridax daisy, is a species of flowering plant in the daisy family. It is best known as a widespread weed and pest plant. It is native to the tropical Americas, but it has been introduced to tropical, subtropical, and mild temperate regions worldwide. It is listed as a noxious weed in the United States and has pest status in nine states.
Melisa Trockels
In India, the juice from the leaves are used to treat wounds. An essential oil from this plant has insecticidal properties against cockroaches and mosquitoes.
Source: Florida Foraging. Coat Buttons [Internet]. 28 Oct 2017. Available from http://www.floridaforaging.com/plant/tridax-procumbens