Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by physical form]
7. [fiber and fiber by product]
8. fiber
9. natural fiber
10. plant fiber

Anotations

Scope note:

Short, fluffy fibers obtained from the cylindrical flowers of plants of the genus Typha. Used for filling pillows, upholstery, life jackets, and as sorbents; the fiber provides sound and heat insulation as well as buoyancy.