Buphthalmum pratense Vahl accepted as Ceruana pratensis Forssk. (original description)
Carduus paniculatus Vahl accepted as Cirsium pyrenaicum (Jacq.) All. (original description)
Centaurea hyssopifolia Vahl (original description)
Centaurea verbascifolia Vahl (original description)
Conyza crispata Vahl accepted as Blumea crispata var. crispata (original description)
Conyza rugosa Vahl accepted as Pterocaulon rugosum (Vahl) Malme accepted as Pterocaulon spicatum var. brachystachyum DC. accepted as Pterocaulon rugosum (Vahl) Malme (original description)
Cynara integrifolia Vahl accepted as Klasea integrifolia (Vahl) Greuter (original description)
Erigeron decurrens Vahl accepted as Laggera decurrens (Vahl) Hepper & J.R.I.Wood (original description)
Erigeron incanus Vahl (original description)
Gnaphalium spicatum (Forssk.) Vahl accepted as Ifloga spicata (Forssk.) Sch.Bip. (original description)
Senecio auriculatus Vahl accepted as Senecio lyratus Forssk. (original description)
Senecio biflorus Vahl (original description)
Serratula ciliata Vahl (original description)
Staehelina hastata Vahl accepted as Vernonia spatulata (Forssk.) Sch.Bip. (original description)
Staehelina spinosa Vahl (original description)