ἱππόφαιστον
From LSJ
αἱ μέν ἀποφάσεις ἐπί τῶν θείων ἀληθεῖς, αἱ δέ καταφάσεις ἀνάρμοστοι τῇ κρυφιότητι τῶν ἀποῤῥήτων → as concerns the things of the gods, negative pronouncements are true, but positive ones are inadequate to their hidden character
English (LSJ)
τό, a plant,
A Centaurea spinosa, Dsc.4.160, Plin.HN 27.92, Ruf. ap. Orib.7.26.37.