Acanthus ueleensis De Wild. [family ACANTHACEAE], in Ann. Mus. Congo Bot., ser. 5, 3: 270 (1910); Napper in K.B. 24: 332 (1970); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 466 (1997); White et al., For. Fl. Malawi: 113 (2001); Burrows, Pl. Nyika Plateau: 48 (2005); Vollesen in K.B. 62: 245 (2007). Type: Congo-Kinshasa, Uele River, Seret 272 (BR!, holo.; BR!, iso.)
Acanthus montanus [family ACANTHACEAE], [sensu C.B.Clarke in F.T.A. 5: 107 (1899) pro parte; Lindau in Z.A.E.: 299 (1912); De Wildeman, Contrib. Fl. Katanga: 202 (1921); F.P.N.A. 2: 292 (1947), non (Nees) T. Anderson (1863)]
Acanthus vandermeirenii De Wild. [family ACANTHACEAE], in B.J.B.B. 4: 428 (1914). Type: Congo-Kinshasa, between Lubile and Lukuya Rivers, Vandermeiren s.n. (BR!, holo.)
Acanthus vandermeirenii De Wild. var. violaceo-punctatus [family ACANTHACEAE], Pl. Beq. 4: 27 (1926). Type: Congo-Kinshasa, Kifuku (Irumu), Bequaert 2684 (BR!, holo.)
Acanthus ueleensis Napper subsp. mahaliensis [family ACANTHACEAE], in K.B. 24: 332 (1970); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 466 (1997). Type: Tanzania, Mpanda District: Mt Kungwe, Ntali River, Newbould & Harley 4594 (K!, holo.; K! iso.)