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Eastern Hemlock

The Tsuga Canadensis is commonly known as Canada Hemlock, Eastern Hemlock, as well as Hemlock Spruce

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Growing Regions

In the United States, eastern hemlock occurs throughout New England, the mid-Atlantic states, and the Lake States, and extends south in the Appalachian Mountains to northern Georgia and Alabama and west from the mountains into Indiana, western Ohio, and western Kentucky.  At its northern limit, eastern hemlock ranges along the southern border of Canada from southern Ontario to Cape Breton Island, Nova Scotia [20,35].

     

General Information

The currently accepted scientific name for eastern hemlock is Tsuga canadensis (L.) Carr. [35]. Fernald [15] recognizes a dwarf form, T. canadensis forma parvula Vict. and Rousseau, that grows in mats up to 3 feet (1 m) high in Quebec and New England.

Eastern hemlock occurs as a dominant or codominant in coniferous and
mixed-hardwood forests.  It is often the only conifer present in mixed
mesophytic forests of the eastern United States [40].

Publications listing eastern hemlock as codominant or dominant are as
follows:

The natural forests of Maryland: an explanation of the vegetation map
   of Maryland [7]
A multivariate analysis of forest communities in the western Great Smoky
   Mountains National Park [9]
The vegetation of Wisconsin [10]
The principal plant associations of the Saint Lawrence Valley [11]
Field guide: forest habitat types of northern Wisconsin [32]
A classification of the deciduous forest of eastern North America [42]
The natural communities of South Carolina [45]
Forest associations in the Harvard Forest [55]
Vegetation of the Great Smoky Mountains [65]
 

Much of the information presented here is attributed to:
Carey, Jennifer H. 1993. Tsuga canadensis. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.

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