Circumpolar Arctic Floristic Provinces - East Siberian Group

 

West Siberia - East Siberia - Beringia - Canada - North Atlantic

Circumpolar Arctic Floristic Provinces - East Siberian Group

Circumpolar Arctic Floristic Provinces - East Siberian Group.
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"Distinctive features of the continental Siberian floras are particularly pronounced. The typical representatives of the floras of the Atlantic and Beringian sectors are almost totally lacking: negative differential taxa, i.e. species in common with the remainder of the American Arctic, which are missing, include Campanula uniflora, Festuca baffinensis, Loiseleuria procumbens, Phyllodoce coerulea, Silene acaulis and many others."

"From the Yenisey River eastward we find more and more East Siberian species, while fewer rare western species (present only in W. Taimyr) disappear. Towards the eastern boundary few East Siberian species disappear, whereas many species from the east side of the Kolyma River, i.e. Chukotkan, amphi-Beringian and American-Chukotkan species appear."

"The East Siberian [sector] is not homogeneous; there is a clear longitudinal floristical gradient. The [group] constitutes a natural swarm with its centre in the Kharaulakh subprovince. The High Arctic floras of the Severnaya Zemlya and the New Siberian Islands (Novosibirskiye ostrova) are more related to each other than to those of the neighbouring High Arctic areas: Novaya Zemlya, Fransz Josef Land (Zemlya Frantsa Iosifa) and Wrangel Island." (From Yurtsev 1994.)