Bellis droserifolia Gouan accepted as Bellium bellidioides L. (original description)
Cacalia alliariae Gouan accepted as Adenostyles alliariae (Gouan) A.Kern. (original description)
Carduus carlinoides Gouan (original description)
Carduus medius Gouan accepted as Carduus defloratus subsp. medius (Gouan) Bonnier (original description)
Carduus mollis Gouan accepted as Jurinea humilis (Desf.) DC. (original description)
Carduus pyrenaicus Gouan accepted as Cirsium monspessulanum var. pyrenaicum (original description)
Carlina racemosa Gouan (original description)
Crepis nemausensis Gouan accepted as Crepis sancta (L.) Bornm. (original description)
Crepis sibirica Gouan (original description)
Hieracium cerinthoides Gouan (original description)
Hieracium conyzifolium Gouan accepted as Crepis conyzifolia (Gouan) A.Kern. (original description)
Hieracium lampsanoides Gouan accepted as Crepis lampsanoides (Gouan) Tausch (original description)
Hieracium prunellifolium Gouan accepted as Crepis pygmaea L. (original description)
Leontodon pyrenaicus Gouan accepted as Scorzoneroides pyrenaica (Gouan) Holub (original description)
Leontodon raii Gouan accepted as Taraxacum raii (Gouan) Gray (original description)
Onopordum graecum Gouan (original description)
Scorzonera eriosperma Gouan accepted as Lasiospora hirsuta (Gouan) Cass. (original description)
Scorzonera pinifolia Gouan accepted as Scorzonera angustifolia L. (original description)
Senecio barrelieri Gouan (original description)