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. hardwood
12. oak (wood)

Anotations

Scope note:

Wood from the species Quercus palustris, native primarily to bottomlands and moist uplands of eastern North America, but found as far west as Oklahoma and Ontario, Canada. It is a reddish brown hard wood that shrinks and cracks with drying; sometimes sold as red oak for flooring and lumber, but it is weaker and contains more knots.