HELICHRYSUM odoratissimum (L.) Sweet [family COMPOSITAE], Hort. Brit.: 223 (1826); DC., Prodr. 6: 202 (1838); Moeser in E.J. 44: 242 (1910); T.T.C.L.: 151 (1949); F.P.S. 3: 35 (1956); A.V.P.: 201, 338 (1957); F.P.U.: 177 (1962); C.D. Adams in F.W.T.A. ed. 2, 2: 264 (1963); Hilliard in F.S.A. 33, 7 (2): 74, fig. 15/1 (1983); Maquet in Troupin, Fl. Rwanda 3: 608 (1985); Blundell, Wild Flow. E. Africa: 171, fig. 370 (1987); Lisowski in F.A.C. Compositae, Inuleae: 76, t. 13/f-j (1989); Anderb. in Opera Bot. 104: 145 (1991); U.K.W.F. ed. 2: 211, t. 86 (1994). Type: not designated (the LINN sheet has been taken as type by a number of authors but it shows every sign of being a post-1753 addition to the herbarium, fide C. Jarvis; he feels the only original material is the cited Plukenet plate)
Gnaphalium odoratissimum L. [family COMPOSITAE], Sp. Pl.: 855 (1753) & ed. 2: 1196 (1763)
Helichrysum engleri O. Hoffm. [family COMPOSITAE], in E.J. 20: 232 (1895), syn. nov. Syntypes: Tanzania, Kilimanjaro, Kersten 284 (B†, syn.), Mayer 284 (B†, syn.), Volkens 858 (B†, BR!, syn.)
Helichrysum roulingi De Wild. [family COMPOSITAE], in Ann. Mus. Congo, Bot. ser. 5, 3: 310 (1910), syn. nov. Type: Congo (Kinshasa), Uvira, Rouling anno 1908 (BR!, holo.)
Helichrysum rosmarinum Mattf. [family COMPOSITAE], in E.J. 59, Beibl. 133: 13 (1924). Type: Uganda, Elgon, Dummer 3607 (B†, holo., K!, iso.)
Helichrysum butaguense De Wild. [family COMPOSITAE], Pl. Bequaert. 5: 46 (1929). Type: Congo (Kinshasa), Ruwenzori, Butagu Valley, Bequaert 3678 (BR!, lecto., chosen here)