The Scandinavian and Russian taiga is an ecoregion

Ecoregion

An ecoregion , sometimes called a bioregion, is an ecologically and geographically defined area that is smaller than an ecozone and larger than an ecosystem. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural...

 within the Taiga and Boreal forests

Taiga

Taiga , also known as the boreal forest, is a biome characterized by coniferous forests.Taiga is the world's largest terrestrial biome. In North America it covers most of inland Canada and Alaska as well as parts of the extreme northern continental United States and is known as the Northwoods...

 Biome

Biome

Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. Some parts of the earth have more or less the same kind of abiotic and biotic factors spread over a...

 as defined by the WWF

World Wide Fund for Nature

The World Wide Fund for Nature is an international non-governmental organization working on issues regarding the conservation, research and restoration of the environment, formerly named the World Wildlife Fund, which remains its official name in Canada and the United States...

 classification (ecoregion PA0608). It is situated in Northern Europe

Northern Europe

Northern Europe is the northern part or region of Europe. Northern Europe typically refers to the seven countries in the northern part of the European subcontinent which includes Denmark, Estonia, Latvia, Lithuania, Norway, Finland and Sweden...

 between tundra

Tundra

In physical geography, tundra is a biome where the tree growth is hindered by low temperatures and short growing seasons. The term tundra comes through Russian тундра from the Kildin Sami word tūndâr "uplands," "treeless mountain tract." There are three types of tundra: Arctic tundra, alpine...

 in the north and temperate mixed forests in the south and occupies about 2,156,900 km² (832,800 mi²) in Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

, Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

, Finland

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 and the northern part of European Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

, being the largest ecoregion in Europe.

Description

The Scandinavian and Russian taiga consists of coniferous forest

Forest

A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending where you are in the world, what is considered a forest may vary significantly in size and have various classification according to how and what of the forest is composed...

s dominated by Pinus sylvestris (in drier locations), often with an understory of Juniperus communis

Juniperus communis

Juniperus communis, the Common Juniper, is a species in the genus Juniperus, in the family Cupressaceae. It has the largest range of any woody plant, throughout the cool temperate Northern Hemisphere from the Arctic south in mountains to around 30°N latitude in North America, Europe and Asia.-...

, Picea abies and Picea obovata and a significant admixture of Betula pubescens and Betula pendula. Larix sibirica is characteristic of the eastern part of the ecoregion.

It is bordered by the ecoregions of Scandinavian coastal conifer forests

Scandinavian coastal conifer forests

The Scandinavian coastal conifer forest ecoregion, a Palearctic ecoregion in the Temperate coniferous forests Biome, is located in along the coast of Norway...

 (west), Scandinavian Montane Birch forest and grasslands

Scandinavian Montane Birch forest and grasslands

The Scandinavian Montane Birch forests and grasslands ecoregion, a Palearctic ecoregion of the Alpine tundra and Boreal forest Biomes, located in Norway, Sweden, and Finland. It is one of the terrestrial ecoregions determined and defined by the World Wildlife Fund...

 (northwest and upwards in the higlands and mountains), Kola Peninsula tundra (north), Northwest Russian-Novaya Zemlya tundra (northeast), Urals montane tundra and taiga (east) and Sarmatic mixed forests

Sarmatic mixed forests

thumb|237px|[[Pinophyta|Coniferous trees]] are dominating this sarmatic mixed [[forest]] in southernmost [[Finland]]The Sarmatic mixed forests constitute an ecoregion within the Temperate broadleaf and mixed forests Biome, according to the World Wide Fund for Nature classification...

 (south), by the Baltic Sea

Baltic Sea

The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

 and White Sea

White Sea

The White Sea is a southern inlet of the Barents Sea located on the northwest coast of Russia. It is surrounded by Karelia to the west, the Kola Peninsula to the north, and the Kanin Peninsula to the northeast. The whole of the White Sea is under Russian sovereignty and considered to be part of...

. Geobotanically, it belongs to the Northeastern European floristic province

Floristic province

A phytochorion, in phytogeography, is a geographic area with a relatively uniform composition of plant species. Adjacent phytochoria do not usually have a sharp boundary, but rather a soft one, a transitional area in which many species from both regions overlap...

 of the Circumboreal Region

Circumboreal Region

The Circumboreal Region is a floristic region within the Holarctic Kingdom in Eurasia and North America, as delineated by such geobotanists as Josias Braun-Blanquet and Armen Takhtajan....

 of the Holarctic Kingdom.