Reference Terms
from Wikipedia, the free encyclopedia

Old growth forest

Old growth forest, sometimes called late seral forest or ancient forest or primary forest is an area of forest that has attained great age and exhibits unique biological features.

Old growth forests typically contain large live trees, large dead trees (sometimes called "snags"), and large logs.

Note:   The above text is excerpted from the Wikipedia article "Old growth forest", which has been released under the GNU Free Documentation License.
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