The Eastern Hemlock (Tsuga canadensis), the state tree of Pennsylvania, is one of the dominant trees of the Commonwealth's forests. The tree can grow to a height greater than one hundred feet and is f READ MORE http://www.dcnr.state.pa.us/forestry/hemlock.aspx
Among the longest-lived species in New England, this conical conifer with long, slender branches drooping to the ground grows between 60 and 70 ft. tall and is extremely shade tolerant. Its needles an READ MORE http://www.yale.edu/fes505b/ehemlock.html