ἐπίπετρον

τό
A. a rock-plant, a kind of sedum, Hp. Ulc. 11 (vulg. ἐπίπτερον), Arist. PA 681a23, cj. for ἐπίμετρον in Thphr. HP 7.7.4.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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