It is the name of a toxic plant in Costa Rica. In southern Brazil, Paraguay and northern Argentina (Chaco Region) the common name for this toxic plant is caángay. It belongs to the Asteraceae family. In the Guarani language it means watercress plant or watercress herb. It is toxic and has medicinal uses. It is also known in the region as caápétay. In Colombia we call it chiva, chiba or hemostatic plant, in Costa Rica, Santa Lucia (and many more names) and in Brazil quebrapedra. Its scientific name is Ageratum conyzoides. this plant has many regional names in every country in South and Central America.
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