23 páginasThe eastern hemlock (Tsuga canadensis (L.) Carr.), as its common and scientific names imply, is a native of the eastern United States and adjacent Canada. It is one of the four North American species of this genus. The genus name means "yew-leaved" and is of Japanese origin. In 1763 the species was named Pinus canadensis by Linnaeus. The genus was separated from Pinus in 1847 by S. L. Endlicher and the species was named canadensis in 1855 by the French botanist Elie A. Carriere. Other common names are hemlock, hemlock spruce, and Canada hemlock.url.ie/dm9n