Lewis Short
pŏlyanthĕmum (noun N) = πολυάνθεμον: (pure Lat. ranunculus)
* A caustic plant, otherwise called batrachion (perh. Ranunculus polyanthemos, Linn., many-flowered, crowfoot), Plin. 27, 12, 90, § 112.
Charlton T. Lewis, Charles Short, A Latin Dictionary