... Taxonomy in detail
Scientific name Vipera berus
Authority (Linnaeus, 1758)
Synonyms Coluber berus Linnaeus, 1758 Vipera nikolskii Vedmederya, Grubandt & Rudayeva, 1986
Taxonomic sources Identification Information
Taxonomic notes Preliminary data on the phylogeography of the species based on mtDNA sequences identified several independent evolutionary lineages (Joger et al. 2003; Carlsson et al. 2004). ...
Vipera berus - European Adder or Common Viper
Phylum: Chordata - Class: Reptilia - Order: Squamata - Family: Viperidae
... Adders are Britain's only venomous snake, but unless alarmed, cornered or handled they pose little threat to people.
A full-grown adult Adder is typically 50 to 65 cm long, and occasionally females can grow to over a metre long; however, for the most part Adders are shorter and invariably much thicker than grass snakes. The grey-brown background colour of the Adder is quite different from the dark green of a Grass Snake, and yet many people have difficulty distinguishing the two. Adders have a dark zigzag running along the back and a dark Vee on the back of the head. The point of the Vee is between the eyes. The patterning and the background colour become duller just before the snake sheds (sloughs) a skin. ...
... Vipera berus is also sometimes referred to as the common viper. The common name "adder" is often given to venomous vipers (Viperidae) throughout the Old World. Several examples of other "adders" are: rhombic night adder, Causus rhombeatus, puff adder, Bitis arietans, and death adder, Acanthophis antarcticus. ("Venomous Snakes of Liberia and West Africa", 2005; Russell, 1983; Solway, 2005) ...
Common European Adder
Common European viper, Common adder, Common viper, Marlies, Prags, Bardas, European viper, Northern viper, Adder, Crossed viper, European adder, European common viper, Cross adder, Common cross adder ...
... SPECIES Vipera berus
Population size Unknown
Life Span 10-15 yrs
WEIGHT 50-180 g
LENGTH 60-90 cm
The Common European adder is a venomous snake that is extremely widespread and can be found throughout most of Western Europe and as far as East Asia. ...
A Friendly Viper?
The European Viper, Vipera berus, is also known as the European Adder, the Common Adder, and the Common Viper. This species is found throughout most of Europe and a large part of Asia. While this viper is venomous, it isn’t considered dangerous. The viper is not very aggressive and usually only bites when disturbed. However, you’d have a hard time calling this species a friendly viper; it’s a bit of an oxymoron. ...
Vipera berus, the common European adder  or common European viper, is a venomous snake that is extremely widespread and can be found throughout most of Western Europe and as far as East Asia.
Known by a host of common names including common adder and common viper, adders have been the subject of much folklore in Britain and other European countries. They are not regarded as especially dangerous; the snake is not aggressive and usually bites only when really provoked, stepped on, or picked up. Bites can be very painful, but are seldom fatal. The specific name, berus, is New Latin and was at one time used to refer to a snake, possibly the grass snake, Natrix natrix. ...
All of the above mentionned English names could be added to the dictionary