Urtica

·noun A genus of plants including the common nettles. ·see Nettle, ·noun.

urtica
urtīca, ae, f. [uro]. I Lit. A A nettle , stinging-nettle , Plin. 21, 15, 55, § 92; 22, 13, 15...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
urtica
ūrtīca ae, f VAS-, a nettle, stinging-nettle , H., Ct.—Fig., a spur, incentive, stimulant : divit...

An Elementary Latin Dictionary