- Vipera, genus Vipera - type genus of the Viperidae
--1 is a kind of reptile genus
--1 is a member of Viperidae, family Viperidae
--1 has members:adder, common viper, Vipera berus; asp, asp viper, Vipera aspis
| adder, common viper, Vipera berus; asp, asp viper, Vipera aspis |