polyanthemum

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

pŏlyanthĕmum, i, n., = πολυάνθεμον (pure Lat. ranunculus),

a caustic plant , otherwise called batrachion (perh. Ranunculus polyanthemos, Linn., many-flowered , crowfoot ), Plin. 27, 12, 90, § 112.