Achillea hispanica Schrank accepted as Achillea nobilis L. (original description)
Anacyclus barrelieri (Ten.) Guss. accepted as Achillea barrelieri (Ten.) Sch.Bip. (original description)
Anacyclus mucronulatus (Bertero) Guss. accepted as Achillea barrelieri (Ten.) Sch.Bip. (original description)
Carduus affinis Guss. (original description)
Centaurea maculosa Guss. accepted as Centaurea affinis Friv. (original description)
Pyrethrum graminifolium Guss. (original description)
Scorzonera calcitrapifolia var. decumbens Guss. accepted as Podospermum laciniatum subsp. decumbens (Guss.) Gemeinholzer & Greuter (original description)
Verbesina conyzoides Trew accepted as Eclipta prostrata (L.) L. (original description)