Siderasis almeidae M.Pell. & Faden. A habit, showing a fertile rosette B detail of the elongated aerial stem, showing the rusty internodes and leaf-sheaths C detail of the lanate indumentum on the abaxial side of the leaf blade D detail of the hispid indumentum on the adaxial side of the leaf blade E detail of the inflorescence, showing the contracted cincinnus and some floral buds F front view of a flower, showing the fleshy and internally purple sepals, and the lanate ovary. Photographs A, F by M.A.N. Coelho, remaining photographs by M.O.O. Pellegrini.