Oiospermum involucratum (Nees & Mart.) Less.
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2 710835 Oiospermum involucratum (Nees & Mart.) Less. [80 409776 Ethulia involucrata Nees & Mart.] Compositae
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 6(2): fasicle 62, (Compositae, I - II): t. 1 (1873)