Canadian hemlock and Hemlock tree

Canadian hemlock noun - Common forest tree of the eastern United States and Canada; used especially for pulpwood.

Hemlock tree and Canadian hemlock are semantically related. In some cases you can use "Hemlock tree" instead a noun phrase "Canadian hemlock".

Hemlock tree noun - An evergreen tree.

Canadian hemlock and hemlock tree are semantically related. Sometimes you can replace phrase "Canadian hemlock" with "Hemlock tree", this phrases are similar.