ἱπποφαές
From LSJ
ἵνα οὖν μηδ' ἐν τούτῳ δῷ αὐτοῖς λαβήν (Photius, Fragments on the Epistle to the Romans 483.26) → so that he doesn't give them even here a handle (= an opportunity for refutation)
English (LSJ)
έος, τό, a kind of
A spurge, Euphorbia spinosa, used for carding cloth, Asclep. ap. Gal.Nat.Fac.1.13, Dsc.4.159 (also ἱππόφαος ibid., ἱπποφανής Ps.-Dsc.ibid.). 2 = sq., Ps.-Dsc.4.160; = ἱππόφεως, Gal.19.106; as a drug, Thphr.HP9.15.6.
German (Pape)
[Seite 1261] τό, eine Pflanze, Diosc., auch ἱππόφαιστον, Theophr., u. ἱππόφεως, ω, ὁ, Sp.