ἀσπάλαθος
From LSJ
καὶ ὑποθέμενος κατὰ τῆς κεφαλῆς φέρειν τὰς πληγάς, ὡς ἐν ἐκείνῃ τοῦ τε κακοῦ τοῦ πρὸς ἀνθρώπους → and having instructed them to bring their blows against the head, seeing that the harm to humans ... (Josephus, Antiquities of the Jews 1.50)
English (LSJ)
[πᾰ], ὁ, Ar.Fr.749, but more commonly ἡ, as Pherecr. 109 (s. v.l.), Thphr.Od. 33:—name of a
A spinous shrub, yielding a fragrant oil, = ἐρυσίσκηπτρον, camel's thorn, Alhagi maurorum, Thphr.9.7.3, Od.33, Dsc.1.20. 2 thorny trefoil, Calycotome villosa, Thgn.1193 (pl.), Arist.Pr.906b11, Theoc.4.57 (pl.), 24.89. 3 Genista acanthoclada, used as an instrument of torture, ἐπ' ἀσπαλάθων τινὰ κνάμπτειν Pl.R.616a.