Dendrosenecio adnivalis (Mildbr.) E.B.Knox subsp. friesiorum [family COMPOSITAE], in Contr. Univ. Michigan Herb. 19: 243 (1993). Type: Congo (Kinshasa), Ruwenzori, Mildbraed 2599 (B†, holo.) & Ruwenzori, west slope, Humbert 8934 (K!, neo., B!, BR!, GH!, NY!, P!, US!, isoneo., chosen by Mabb.)
Senecio hypoleucus Muschl. [family COMPOSITAE], in Z.A.E.: 665 (1914), nom. nud.
Senecio friesiorum Mildbr. [family COMPOSITAE], in F.R. 18: 231 (1922); A.V.P.: 231, 358 (1957)
Senecio albescens De Wild. [family COMPOSITAE], Pl. Bequaert. 5: 140 (1929). Type: Congo (Kinshasa), Ruwenzori, Butagu Valley, Bequaert 3847 (BR!, holo.)
Senecio johnstonii (Mildbr.) Mabb. var. friesiorum [family COMPOSITAE], in K.B. 28: 84 (1973)
Dendrosenecio johnstonii (Mildbr.) B.Nord. var. friesiorum [family COMPOSITAE], in Opera Bot. 44: 42 (1978)
Senecio johnstonii (Mildbr.) Mabb. var. friesiorum [family COMPOSITAE], in K.B. 41: 891 (1986); Lisowski, Asterac. Fl. Afr. Centr.: 327 (1991)