no HD illustration available (m2)
6 1218770 Stenocephalum megapotamicum (Spreng.) Sch.Bip. [80 1218767 Stenocephalum hexanthum Sch.Bip.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 6(2): fasicle 62, (Compositae, I - II): t. 9 (1873)