Artemisia alpina Sch.Bip. ex Willk. accepted as Artemisia campestris subsp. variabilis (Ten.) Greuter (original description)
Artemisia paniculata Sch.Bip. ex Willk. accepted as Artemisia campestris subsp. variabilis (Ten.) Greuter (original description)
Aster willkommii Sch.Bip. ex Willk. (original description)
Centaurea cephalariifolia Willk. accepted as Centaurea scabiosa subsp. cephalariifolia (Willk.) Greuter (original description)
Cirsium bulbosum Willk. accepted as Cirsium engelmannii Rydb. (original description)
Senecio cantabricus Willk. accepted as Tephroseris helenitis (L.) B.Nord. (original description)
Senecio doronicum Willk. (original description)
Senecio erraticus Willk. (original description)
Tanacetum willkommii Sch.Bip. ex Willk. (original description)