Sterigma sulphureum var. asperulum Boiss., Fl. Orient. 1: 241. 1867.

 Sterigma brachypetalum Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 386. 1842.

 Sterigmostemum sulphureum var. asperulum (Boiss.) Bornm. in Beih. Bot. Centralbl., Abt. 2, 27: 300. 1910.

Note. – This is a renaming at the varietal rank of the previous entry.