viper's bugloss
— Noun
– English
～ a coarse prickly European weed with spikes of blue flowers; naturalized in United States
viper's grass
— Noun
– English
～ perennial south European herb having narrow entire leaves and solitary yellow flower heads and long black edible roots shaped like carrots
Vipera berus
— Noun
– English
～ small terrestrial viper common in northern Eurasia
Vipera aspis
— Noun
– English
～ of southern Europe; similar to but smaller than the adder
Vipera
— Noun
– English
～ type genus of the Viperidae