Alloispermum Willd. (original description)
Alloispermum divaricatum Willd. accepted as Alloispermum caracasanum (Kunth) H.Rob. (original description)
Buphthalmum elegans Brouss. ex Willd. accepted as Asteriscus imbricatus (Cav.) DC. (original description)
Buphthalmum laevigatum Brouss. ex Willd. accepted as Vieraea laevigata (Willd.) Webb ex Sch.Bip. (original description)
Chamaestephanum Willd. accepted as Schkuhria Roth (original description)
Grindelia Willd. (original description)
Grindelia inuloides Willd. (original description)
Gymostyles Willd. (original description)
Gynheteria Willd. accepted as Tessaria Ruiz & Pav. (original description)
Hysterionica Willd. (original description)
Hysterionica jasionoides Willd. (original description)
Leontophthalmum Willd. accepted as Calea L. (original description)
Picris humifusa Willd. accepted as Helminthotheca echioides (L.) Holub (original description)
Psiadia trinervia Willd. (original description)
Rhinactina Willd. accepted as Jungia L.f. (original description)
Seris Willd. accepted as Onoseris Willd. (original description)
Seris onoseroides Willd. (original description)
Sonchus congestus Willd. (original description)
Sonchus glaucus Willd. (original description)
Stevia ivifolia Willd. (original description)
Xanthocephalum Willd. (original description)
Xanthocephalum centauroides Willd. (original description)