This is an easy tree to grow, as long as you live in ... It is similar in size to the American mountain ash, but this species has escaped cultivation in many areas and can crowd out native plants.

This variability could inform the development of hardier ash trees, resistant to both the invasive beetles and rising ...

Paper birch, yellow birch, and American mountain-ash are found along with the spruce and fir at ... Sugar maple, American beech, and yellow birch are the predominant tree species. Yellow birch occurs ...

More than 90% of all ash infested by the insect native to Asia eventually die, threatening to make the tree species functionally extinct in North America. In response, researchers are working to ...