Nissolia, the yellowhoods, is a genus of lianas in the legume family, Fabaceae. It includes 32 species native to the tropical and subtropical Americas, ranging from Arizona and Texas through Mexico, Central America, and South America to northern Argentina. It belongs to the subfamily Faboideae, and was recently assigned to the informal monophyletic Adesmia clade of the Dalbergieae.
32 species are accepted: