Alloiozonium Kunze accepted as Arctotheca J.C.Wendl. accepted as Arctotheca Vaill. (original description)
Alloiozonium arctotideum Kunze accepted as Arctotheca calendula (L.) Levyns (original description)
Antennaria rubicunda K.Koch accepted as Helichrysum rubicundum (K.Koch) Bornm. (original description)
Anthemis pterygantha K.Koch accepted as Anthemis candidissima Willd. ex Spreng. (original description)
Campuloclinium surinamense Miq. accepted as Heterocondylus vitalbae (DC.) R.M.King & H.Rob. (original description)
Carduus nervosus K.Koch (original description)
Centaurea ossiva K.Koch accepted as Centaurea resupinata subsp. lagascae (Nyman) Fern.Casas & Susanna (original description)
Chamomilla inodora (L.) K.Koch accepted as Tripleurospermum inodorum (L.) Sch.Bip. (original description)
Chamomilla praecox (M.Bieb.) K.Koch accepted as Tripleurospermum parviflorum (Willd.) Pobed. (original description)
Cineraria distans Kunze accepted as Senecio geifolius Sch.Bip. (original description)
Cirsium erythrolepis K.Koch (original description)
Cirsium oblongifolium K.Koch (original description)
Cirsium penicillatum K.Koch accepted as Cirsium leucocephalum subsp. penicillatum (K.Koch) Greuter (original description)
Crepis ciliata K.Koch (original description)
Crepis youngiformis K.Koch accepted as Crepis pulchra subsp. pulchra L. (original description)
Eupatorium punctatum Mill. accepted as Porophyllum punctatum (Mill.) S.F.Blake (original description)
Lactuca caucasica K.Koch accepted as Lactuca saligna L. (original description)
Mikania argyrostigma Miq. accepted as Mikania guaco Humb. & Bonpl. (original description)
Mikania aspera Miq. accepted as Mikania guaco Humb. & Bonpl. (original description)
Mikania fockeana Miq. accepted as Mikania psilostachya DC. (original description)
Mulgedium grande K.Koch accepted as Lactuca macrophylla (Willd.) A.Gray (original description)
Mulgedium petiolatum K.Koch accepted as Prenanthes petiolata (K.Koch) Sennikov (original description)
Oligochaeta (DC.) K.Koch (original description)
Oligochaeta divaricata (Fisch. & C.A.Mey.) K.Koch (original description)
Podospermum buxbaumii K.Koch accepted as Podospermum laciniatum subsp. decumbens (Guss.) Gemeinholzer & Greuter (original description)
Podospermum heterophyllum K.Koch accepted as Podospermum laciniatum subsp. decumbens (Guss.) Gemeinholzer & Greuter (original description)
Pterotheca nemausensis var. glaucescens K.Koch (original description)
Pyrethrum armenum K.Koch accepted as Tanacetum aureum (Lam.) Greuter & al. (original description)
Scorzonera suberosa K.Koch (original description)
Senecio doria K.Koch (original description)
Senecio pandurifolius K.Koch accepted as Iranecio pandurifolius (K.Koch) C.Jeffrey (original description)
Senecio rariflorus K.Koch (original description)
Sogalgina dentata Lilja (original description)