Blepharispermum villosum O.Hoffm. (original description)
Cineraria gracilis O.Hoffm. (original description)
Cirsium buchwaldii O.Hoffm. accepted as Afrocirsium buchwaldii (O.Hoffm.) Calleja, Garcia-Jacas, Moreyra & Susanna (original description)
Cirsium englerianum O.Hoffm. accepted as Nuriaea engleriana (O. Hoffm.) Susanna, Calleja & Moreyra (original description)
Conyza fruticulosa O.Hoffm. (original description)
Coreopsis ellenbeckii O.Hoffm. accepted as Bidens macroptera (Sch.Bip. ex Chiov.) Mesfin (original description)
Coreopsis pulchella O.Hoffm. accepted as Bidens microphylla Sherff (original description)
Coreopsis schimperi O.Hoffm. accepted as Bidens carinata Cuf. ex Mesfin accepted as Bidens carinata (Hutch.) Cufod. (original description)
Echinops ellenbeckii O.Hoffm. (original description)
Echinops neumannii O.Hoffm. accepted as Echinops amplexicaulis Oliv. (original description)
Erlangea pectinata O.Hoffm. accepted as Bothriocline pectinata (O.Hoffm.) Wild & G.V.Pope (original description)
Erlangea somalensis O.Hoffm. accepted as Erlangea smithii S.Moore (original description)
Gongrothamnus plumosus O.Hoffm. accepted as Distephanus plumosus (O.Hoffm.) Mesfin (original description)
Gynoxys columbiana (Klatt) Hieron. (original description)
Herderia somalensis O.Hoffm. accepted as Gutenbergia somalensis (O.Hoffm.) M.G.Gilbert (original description)
Inula eminii (O.Hoffm.) O.Hoffm. (original description)
Psiadia mollissima O.Hoffm. (original description)
Pulicaria somalensis O.Hoffm. (original description)
Senecio ellenbeckii O.Hoffm. (original description)
Senecio erlangeri O.Hoffm. (original description)
Vernonia gofensis O.Hoffm. (original description)
Vernonia neumanniana O.Hoffm. (original description)
Vernonia sidamensis O.Hoffm. (original description)
Vernonia woodii O.Hoffm. accepted as Baccharoides adoensis var. kotschyana (Sch.Bip. ex Walp.) Isawumi, El-Ghazaly & B.Nord. (original description)