Bourgaea Coss. accepted as Cynara L. (original description)
Bourgaea humilis (L.) Coss. accepted as Cynara humilis L. (original description)
Cirsium welwitschii Coss. (original description)
Scorzonera albicans Coss. (original description)
Senecio auricula Bourg. ex Coss. accepted as Jacobaea auricula (Bourg. ex Coss.) Pelser (original description)
Serratula alcalae Coss. accepted as Klasea baetica subsp. alcalae (Coss.) Cantó & Rivas Mart. (original description)
Zollikoferia resedifolia (L.) Coss. accepted as Podospermum laciniatum subsp. decumbens (Guss.) Gemeinholzer & Greuter (original description)