Achillea dentifera DC. accepted as Achillea distans subsp. tanacetifolia (All.) Janch. (original description)
Anacyclus pyrethrum DC. (original description)
Anacyclus tomentosus DC. accepted as Anacyclus clavatus (Desf.) Pers. (original description)
Andryala incana DC. accepted as Andryala ragusina L. (original description)
Aster pseudoamellus DC. accepted as Aster amellus L. (original description)
Carduus arenarius DC. accepted as Carduus litigiosus Nocca & Balb. (original description)
Chrysocoma saxatilis DC. accepted as Dittrichia viscosa (L.) Greuter (original description)
Cirsium echinatum (Desf.) DC. (original description)
Cirsium glabrum DC. (original description)
Cirsium hybridum W.D.J.Koch (original description)
Hieracium angustifolium DC. (original description)
Hieracium brachiatum Bertol. ex DC. accepted as Pilosella brachiata (DC.) F.W.Schultz & Sch.Bip. (original description)
Hieracium breviscapum DC. accepted as Pilosella breviscapa (DC.) Soják (original description)
Inula helenioides DC. (original description)
Lactuca cichoriifolia DC. accepted as Lactuca perennis L. (original description)
Onopordum pyrenaicum DC. (original description)
Onopordum virens DC. (original description)
Podospermum calcitrapifolium (Vahl) DC. accepted as Podospermum laciniatum subsp. decumbens (Guss.) Gemeinholzer & Greuter (original description)
Pyrethrum tomentosum DC. (original description)
Robertia A.Rich. ex DC. accepted as Hypochaeris L. (original description)
Robertia taraxacoides (Loisel.) DC. accepted as Hypochaeris robertia (Sch.Bip.) Fiori (original description)
Xanthium macrocarpum DC. accepted as Xanthium orientale L. (original description)