Eastern hemlock


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Eastern hemlock

[‚ē·stərn ′hem‚läk]
(forestry)
Tsuga canadensis. A type of hemlock that occurs in eastern Canada, the Great Lakes states, and the Appalachians; it grows to a height of about 90 ft (27 m) and has minutely toothed leaves, with some of the smaller ones growing upside down. The bark is a principal domestic source of tannin.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

eastern hemlock, hemlock spruce, spruce pine

Wood of a coniferous tree of eastern North America; moisture-resistant, soft, coarse, uneven-textured; splinters easily; inferior for use in construction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Spatial and temporal distribution of imidacloprid in eastern hemlock in the Southern Appalachians.
Ten freshly sawn eastern hemlock (Tsuga canadensis [L.] Carr) flatsawn boards (3.05 m by 140 mm by 38 mm) containing both sapwood and heartwood were obtained from a mill in northern Wisconsin.
Eastern hemlock (Tsuga canadensis) in north central Wisconsin.
This study was conducted at Coweeta Hydrologic Laboratory, Macon Co., North Carolina, U.S.A., where eastern hemlock has been an abundant and important streamside species.
Eastern hemlock (Tsuga canadensis (L.) Carr.) is currently facing an extinction force in the hemlock woolly adelgid {Adelges isugae Annand; HWA) and may become another species restricted largely to the periphery of its current range.
Wood used in the glulam panels was eastern hemlock, which is a low-grade, but abundant New England species.
- Eastern hemlock was distinctive in both its size-class structure and its response to disturbance.
Psocopterans comprise a major component of arthropod diversity on eastern hemlock, occupying an important ecological role as major consumers of microepiphytes as well as an integral food source for predators (Thornton 1985; Mockford 1993).
Site selection was part of a larger study investigating the effects of eastern hemlock (Tsuga canadensis) decline on Acadian flycatcher populations (Allen, 2008; Allen et al., 2009; Allen and Sheehan, 2010) and was based upon stream size (small headwater streams) and forest structure (mature forests dominated either by deciduous trees or eastern hemlock).
That is one of the few sections of the French River in Oxford that has Eastern hemlock and steep slopes.
This change represents a threat to eastern hemlock forests in areas that, up until now, have been protected by cold winter temperatures.

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