1) Genus tsuga 2) Gymnosperm genus 
Tsuga caroliniana Carolina Hemlock Tsuga chinensis Taiwan Hemlock Tsuga diversifolia Northern Japanese Hemlock Tsuga dumosa Himalayan Hemlock Tsuga forrestii Forrest`s Hemlock Tsuga heterophylla Western Hemlock Tsuga sieboldii Southern Japanese Hemlock Tsuga (ə, from 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the pine f....
(Hemlock) These evergreen trees are commonly known as Hemlock or Hemlock Spruce. Hemlocks are found wild in North America, the Himalayas, Japan and China. Most of these trees are hardy and as other Conifers (cone-bearing tree), need a fairly clean atmosphere to survive. Hemlock can be distinguished from other Conifers by its flat, linear, dark gree...
Tsuga is a genus of hardy evergreen trees of the family Coniferae, including the hemlock spruce. The leaves are narrow, and the flowers monoecious. The cones are subglobose in form.
[n] - hemlock
genus Tsuga noun hemlock; hemlock fir; hemlock spruce