It is one of the common names of a toxic plant and considered weeds, in paddocks and savannas. It is found in northern Argentina, in Paraguay and some parts of southern Brazil. Its scientific name is Ageratum conyzoides and it belongs to the Asteraceae family. It also receives the names of caángay, celestina, chiva, chuva, teatina, manrubio, mastranto, susumpate.
retentine- it is a species of herbaceous plant, annual, of the family Asteraceae, about 70 cm high, very toxic, considered a weed, native to South America; it has opposite leaves, small pink or white flowers of nauseating smell, becoming a weed of the tropical areas of the world-It is used medicinally as an antibacterial or antiarthritic, also, for its essential oils, it is used in cosmetics; is toxic to mammals-
