Tundra

ESSENTIAL

1. Forest-tundra2. Dwarf tundra3. Moss-lichen tundra4. Arctic tundra https://www.mindomo.com/mindmap/9d561b3a0eca4e95b62762fdc4f666dfhttps://pl.wikipedia.org/wiki/Tundra_krzewinkowa

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Subtopic

ECOREGIONS

AUSTRALASIA

Antipodes Subantarctic Islands tundra

NEARCTIC

Ahklun and Kilbuck Upland Tundra

Alaska-St. Elias Range tundra

Aleutian Islands tundra

Arctic coastal tundra

Arctic foothills tundra

Beringia lowland tundra

Beringia upland tundra

Brooks-British Range tundra

Canadian High Arctic tundra

Canadian Low Arctic tundra

Canadian Middle Arctic Tundra

Davis Highlands tundra

Interior Yukon-Alaska alpine tundra

Kalaallit Nunaat Arctic steppe

Kalaallit Nunaat High Arctic tundra

50% of the territory is bare rock and ice, or very sparse vegetation. 30% of the ecoregion has a cover of moss and lichen, and another 3% of herbaceous cover and shrubs Some small areas on the east coast have greater plant life aroundhot springs, particularly marsh willowherb (Epilobium palustre)) andthe northern green orchid (Platanthera hyperborea) Studies have identified eight types of vegetation on the east coast from 72 to 79° N:Dwarf shrub heaths (Cassiope tetragona, Salix arctica, Vaccinium uliginosum or Betula nana,Grasslands (dry in summer: Arctagrostis latifolia, Carex bigelowii, sooty sedge (Carex misandra), and Eriophorum triste)Permanently wet fens (Carex stans, Eriophorum scheuchzeri, and Arctagrostis latifolia)Snowbeds (Phippsia algida, Salix herbacea, Trisetum spicatum and Erigeron humilis);Open, graminoid Dryas-heaths and fellfields on dry soil (Carex nardina, Carex rupestris, and Kobresia myosuroides);Fellfields (Calamagrostis purpurascens and Carex supina)Communities on wet ground that is covered by an organic crust (Koenigia islandica and Festuca hyperborea);Halophytic vegetation (Puccinellia phryganodes and Carex subspathacea).