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Which Trees Hold Their Leaves (IL)

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From: Eileen McBride City: downers Grove, IL
Which trees in northern Illinois retain their leaves all winter. I know the bur oak does, but which other trees also hold leaves?
	Extension Message From: Jay Hayek Extension Specialist, Forestry Department of Natural Resources and Environmental Sciences jhayek@illinois.edu
Greetings Eileen: Many juvenile oak (Quercus) trees will retain their leaves during the dormant season -- this phenomenon is referred to as "marcescence." However, oak is not alone with regard to this phenomenon: witch-hazel, American beech. eastern hophornbeam / ironwood, and American hornbeam / musclewood. More on marcescence: http://northernwoodlands.org/articles/article/why-do-some-leaves-persist-on-beech-and-oak-trees-well-into-winter
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