A new species of the genus Stifftia, native in the northern coast of the State of São Paulo, and cultivated at the Instituto Agronômico, Campinas, is described. The new species is 2 - 3 meters high, showing simple and lanate, alternate leaves. Flowers are disposed in terminal inflorescences with 1 - 5 heads at 10 - 15 flowers each. The involucrum of the heads is made up of 8 - 10 seriate bracts. The flowers are yellow. The fruit is an acquenium, with a dark color and a red uniseriate pappus. The new species was named Stifftia Grazieli sp. nov., and is dedicated to the distinguished botanist Graziela Maciel Barroso of the Jardim Botânico of Rio de Janeiro.