Brachyscome palustris O.Hoffm. accepted as Jeffreya palustris (O.Hoffm.) Wild (original description)
Centaurea goetzeana O.Hoffm. accepted as Centaurea praecox Oliv. & Hiern (original description)
Cineraria foliosa O.Hoffm. (original description)
Coreopsis crataegifolia O.Hoffm. accepted as Bidens kilimandscharica (O.Hoffm.) Sherff (original description)
Coreopsis lineariloba O.Hoffm. (original description)
Coreopsis lupulina O.Hoffm. accepted as Bidens pinnatipartita (O.Hoffm.) Wild (original description)
Coreopsis ochracea O.Hoffm. accepted as Bidens ochracea (O.Hoffm.) Sherff (original description)
Coreopsis pinnatipartita O.Hoffm. accepted as Bidens pinnatipartita (O.Hoffm.) Wild (original description)
Dicoma vaginata O.Hoffm. accepted as Macledium kirkii subsp. vaginatum (O.Hoffm.) S.Ortiz (original description)
Echinops velutinus O.Hoffm. accepted as Echinops giganteus A.Rich. (original description)
Gazania angustifolia O.Hoffm. accepted as Hirpicium angustifolium (O.Hoffm.) Roessler (original description)
Gongrothamnus aurantiacus O.Hoffm. accepted as Distephanus divaricatus (Steetz) H.Rob. & B.Kahn (original description)
Helichrysum abietinum O.Hoffm. (original description)
Helichrysum goetzeanum O.Hoffm. (original description)
Helichrysum tillandsiifolium O.Hoffm. (original description)
Nidorella stricta O.Hoffm. accepted as Nidorella spartioides (O.Hoffm.) Cronquist (original description)
Senecio dolichopappus O.Hoffm. accepted as Lopholaena dolichopappa (O.Hoffm.) S.Moore (original description)
Senecio pachyrhizus O.Hoffm. (original description)
Senecio psiadioides O.Hoffm. accepted as Senecio maranguensis O.Hoffm. (original description)
Senecio tener O.Hoffm. accepted as Emilia tenera (O.Hoffm.) C.Jeffrey (original description)
Senecio trianthemos O.Hoffm. accepted as Lopholaena trianthema (O.Hoffm.) B.L.Burtt (original description)
Senecio tropaeolifolius O.Hoffm. accepted as Senecio milanjianus S.Moore (original description)
Senecio ukingensis O.Hoffm. accepted as Emilia ukingensis (O.Hoffm.) C.Jeffrey (original description)
Senecio ussanguensis O.Hoffm. accepted as Lopholaena ussanguensis (O.Hoffm.) S.Moore (original description)
Sonchus lasiorhizus O.Hoffm. accepted as Lactuca lasiorhiza (O.Hoffm.) C.Jeffrey (original description)
Sonchus violaceus O.Hoffm. accepted as Launaea violacea (O.Hoffm.) Boulos (original description)
Tripteris goetzei O.Hoffm. accepted as Tripteris monocephala Oliv. & Hiern (original description)
Vernonia ampla O.Hoffm. accepted as Gymnanthemum myrianthum (Hook.f.) H.Rob. (original description)
Vernonia bracteosa O.Hoffm. accepted as Baccharoides bracteosa (O.Hoffm.) Isawumi, El-Ghazaly & B.Nord. (original description)
Vernonia leucocalyx O.Hoffm. accepted as Vernonia calvoana subsp. leucocalyx (O.Hoffm.) C.Jeffrey (original description)
Vernonia lugarensis O.Hoffm. (original description)
Vernonia polyura O.Hoffm. accepted as Gymnanthemum coloratum (Willd.) H.Rob. & B.Kahn (original description)
Vernonia scabrifolia O.Hoffm. accepted as Linzia melleri (Oliv. & Hiern) H.Rob. (original description)
Vernonia sphaerocalyx O.Hoffm. accepted as Gymnanthemum exsertiflorum (Baker) H.Rob. (original description)
Vernonia usafuensis O.Hoffm. accepted as Linzia usafuensis (O.Hoffm.) H.Rob. (original description)