21. The most severe temperate forest dieback was on white birch and yellow birch trees . 22. In winter, rust-colored leaves from birch trees tessellate the snow. 23. The fell's name means a place where Birch trees predominate. 24. And it flew instantaneously from my mouth into a thicket of nearby birch trees . 25. The silver birch tree is of special importance to the Swedish city of Ume? 26. "I perceive myself as this sapling, this birch tree that wears lipstick . ") 27. The present wood is largely composed of silver birch trees which have grown naturally. 28. A screen of thin birch trees extends the effect of veiling into the landscape. 29. It was originally started under a large Birch tree in the village main path. 30. American poet Lucy Larcom's " Swinging on a Birch Tree " celebrates the game.