Gouinia is a genus of Latin American plants in the grass family. Species * (Hack.) Swallen - Pernambuco, Paraíba, Rio Grande do Norte * (S.Moore) Swallen - Brazil (Mato Grosso, Mato Grosso do Sul), Bolivia, Paraguay, Argentina (Salta, Chaco) * (Ekman) Swallen - Ceará, Pernambuco * Ekman - Cuba * (Hack.) Swallen - Nicaragua, Honduras, Guatemala, Chiapas, Campeche, Yucatán, Oaxaca * J.J.Ortíz - Nayarit * (Griseb.) Vasey - widespread from Oaxaca to Paraguay * (Scribn.) Vasey - Querétaro, San Luis Potosí * Swallen - Yucatán Peninsula, Tamaulipas * (Kuntze) Parodi - Argentina, Paraguay, Bolivia, Peru * Swallen - Argentina, Paraguay, Bolivia * (J.Presl) Scribn. - Mexico, Central America, Cuba, Hispaniola, Colombia, Ecuador, Peruformerly included