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. straw (plant material)

Anotations

Scope note:

Straw from the barley plant, traditionally used in Europe and Asia as braided plaits for hats. In the Americas, it was used as a packing material, particularly for shipping glass. It is also used as an animal feed.