Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by origin]
6. biological material
7. plant material
8. [wood and wood by product]
9. wood (plant material)
10. [wood by composition or origin]
11. softwood

Narrower term/s

• eastern hemlock (wood)
• mountain hemlock (wood)
• western hemlock (wood)
• Chinese hemlock (wood)

Anotations

Scope note:

Wood of the tree from the genus Tsuga. The bark contains tannin, used in the tanning industry, and the timber is mostly light in color with a pinkish tinge, and the soft, and coarse-grained, used in construction of boxes.