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mēcon: ōnis, f., = μήκων,I a sort of poppy: tertium genus est tithymalon, mecona vocant, Plin. 20, 19, 80, § 209; App. Herb. 53; 91.
mēcōn, ōnis, f. (μήκων), euphorbe maritime : Plin. 20, 209