Chamaemelum nanum Rupr. (original description)
Conyza crispa (Pourret) Rupr. accepted as Erigeron bonariensis L. (original description)
Dimorphanthes crispa Rupr. accepted as Erigeron bonariensis L. (original description)
Dimorphanthes linifolia (Willd.) Rupr. accepted as Erigeron bonariensis L. (original description)
Hispidella welwitschii Rupr. accepted as Hispidella hispanica barnad. ex Lam. (original description)
Senecio noeanus Rupr. accepted as Senecio glaucus subsp. coronopifolius (Maire) C.Alexander (original description)
Sonchus tigridus Rupr. (original description)