Anthemis cotula subsp. bourgaei (Boiss. & Reut.) Cout. accepted as Anthemis bourgaei Boiss. & Reut. (original description)
Artemisia campestris subsp. lloydii (Rouy) Cout. accepted as Artemisia campestris subsp. maritima (DC.) Arcang. (original description)
Calendula arvensis subsp. malacitana (Boiss. & Reut.) Cout. accepted as Calendula arvensis (Vaill.) L. (original description)
Carduus broteroi (Mariz) Welw. ex Cout. accepted as Carduus lusitanicus subsp. broteroi (Welw. ex Mariz) Devesa & Talavera (original description)
Centaurea paniculata subsp. aristata (Hoffmanns. & Link) Cout. accepted as Centaurea limbata Hoffmanns. & Link (original description)
Centaurea rhaponticoides (Graells) Cout. accepted as Rhaponticum exaltatum (Willk.) Greuter (original description)
Chrysanthemum glabrum Cout. accepted as Mauranthemum paludosum (Poir.) Vogt & Oberpr. (original description)
Conyza crispa (Pourr.) Cout. accepted as Erigeron bonariensis L. (original description)
Doronicum plantagineum subsp. tournefortii (Rouy) Cout. (original description)
Helichrysum angustifolium subsp. serotinum (DC.) Cout. accepted as Helichrysum italicum subsp. serotinum (Boiss.) P.Fourn. (original description)
Phalacrocarpum anomalum (Lag.) Cout. accepted as Phalacrocarpum oppositifolium subsp. anomalum (Lag.) Vogt & Greuter (original description)
Senecio praealtus subsp. foliosus (DC.) Cout. accepted as Jacobaea vulgaris Gaertn. (original description)
Senecio tournefortii subsp. caespitosus (Brot.) Cout. accepted as Senecio pyrenaicus subsp. caespitosus (Brot.) Franco1 (original description)