Calendula kerkerana Sennen (original description)
Carduus narcissi Sennen accepted as Carduus nutans subsp. subacaulis Arènes (original description)
Centaurea riaeana (Rchb.f.) Sennen (original description)
Cynara sennenii Pau ex Sennen (original description)
Echinops rodriguezii Sennen (original description)
Hedypnois arenicola Sennen (original description)
Leuzea pinnatipartita Sennen (original description)
Onopordum kerkeranum Sennen, Mauricio & Sennen (original description)
Reichardia discolor (Pomel) Sennen accepted as Reichardia tingitana (L.) Roth (original description)
Volutaria ramosissima (Pit.) Sennen (original description)
Volutaria tubuliflora (Murb.) Sennen (original description)