Artemisia costae Sennen accepted as Artemisia barrelieri Besser (original description)
Aster luengoi Sennen (original description)
Asteriscus caballeroi Sennen accepted as Pallenis spinosa (L.) Cass. (original description)
Asteriscus madritensis (Sennen) Sennen accepted as Pallenis spinosa (L.) Cass. (original description)
Calendula santamariae Font Quer accepted as Calendula officinalis L. (original description)
Carduus guadarramicus Sennen (original description)
Centaurea cervantesi Sennen (original description)
Centaurea villaris Sennen (original description)
Cupularia blakei Sennen (original description)
Galatella luengoi Sennen (original description)
Onopordum murcicum Sennen (original description)
Pallenis caballeroi Sennen (original description)
Pallenis madritensis Sennen (original description)