Drawing – India ink, acrylic, gouache, and collage on paper, 14 x 9 cm, 2013, Rio de Janeiro. cnidoscolus quercifolius (c. syn. phyllacanthus. Formerly known as jatropha phyllacantha Mull. Arg.) Popularly called Favela, faveleira, Faveleiro or bitter manioc, is a plant from the Euphorbiaceae family. It is endemic to Brazil. (…) It is the plant that gave rise to the term “favela” during the Guerra dos Canudos.