asp viper vs Vipera aspis

asp viper and Vipera aspis both are nouns.

Word	Noun	Adjective	Verb	Adverb
asp viper	Yes	No	No	No
Vipera aspis	Yes	No	No	No

As nouns, asp viper and Vipera aspis are synonyms defined as:

asp viper and Vipera aspis: of southern Europe; similar to but smaller than the adder

Other synonyms of asp viper include asp.

asp viper (noun)	Vipera aspis (noun)
of southern Europe; similar to but smaller than the adder	of southern Europe; similar to but smaller than the adder