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
12. spruce (wood)

Anotations

Scope note:

Wood from Picea rubens, native to North America. It was a major source of lumber for building construction in the 18th and 19th centuries. It was also used for piano sounding boards and for pulpwood. This tree was almost lost to overharvesting, but was protected by a government act in 1911 which purchased considerable land for national forests.