sentence: Rivers come into the Arctic from the warmer south.
sentences_before: Trees are almost seen on the tundra. Only in the protected valleys or along the riverbanks are small trees able to grow.
sentences_after: The places along their banks are a little bit warmer than the rest of the tundra. This means trees can grow there. 0therwise only a few clusters of bushes grow sparingly. Berries are the only fruit that grows in the Arctic.
concept_name: river
headings: Arctic Plant life
categories: Arctic