Siqueiranthus cinereus (D.M.C. Ferreira & Louzada) Leme, Zizka, E.H. Souza & Paule |
Distribution: Brazil, Alagoas state
Habitat: growing at the top of a granitic outcrop in the Atlantic Forest domain, solated by surrounding pasturelands
Etymology: The epithet of this species name is a clear reference to the dense cinereous coverage of trichomes that characterizes it