original: Scattered trees grow in some tundra.
simplifications: Some tundras have a few trees. Tundra is covered by many trees. Trees grow in the tundra. A small number of trees grow in some tundra. Some trees grow in tundra. A few trees grow in some tundra. Scattered trees grow in some tundra. Some tundras see scattered trees growing. Scattered trees have grown in some tundra. In some tundra, scattered trees grow.