Achillea calcarea (Huter, Porta & Rigo) Porta accepted as Achillea rupestris subsp. calcarea Greuter (original description)
Achillea pinnatisecta Porta (original description)
Achillea rupestris Porta accepted as Achillea erba-rotta subsp. rupestris (Porta) I.Richardson (original description)
Adenostyles macrocephala Porta (original description)
Andryala serotina Porta (original description)
Carduus brutius Porta accepted as Carduus affinis subsp. brutius (Porta) Kazmi (original description)
Gnaphalium glomeratum Porta (original description)
Hieracium divaricatum Porta accepted as Hieracium scorzonerifolium subsp. divaricatum Nägeli & Peter (original description)
Leontodon intermedius Porta (original description)
Leucanthemum laciniatum Porta (original description)