Onopordum sibthorpianum Boiss. & Heldr. in Boissier, Fl. Orient. 3: 561. 1875 Onopordum sibthorpianum Boiss. & Heldr. in Boissier, Fl. Orient. 3: 561. 1875Taxon for this nameOnopordum sibthorpianum Boiss. & Heldr. in Boissier, Fl. Orient. 3: 561. 1875