Natural fibers & filaments are divided into 3 subcategories

Cellulosic
Cellulosic fibers are obtained from plants stems (bast fibres), leaves or seeds.

Protein
Protein or keratin fibers and filaments are obtained from hair and silk from animals.

Mineral
Mineral fibers are obtained from minerals.
Only 1 type of fiber meets this category, the asbestos fiber, which is banned in many countries because of health risks.
Cellulosic fibres
Natural cellulosic fibres are obtained from plants stems (bast fibers), leaves or seeds.

Bast
……….

Leaves
……….

Seeds
……….
Natural – Cellulosic – Bast fibers

Flax
………..

Hemp
……….

Jute
……….

Ramie
……….
Natural – Cellulosic – Leaf fibers

Manila
……….

Sisal
……….
Natural – Cellulosic – Seed fibers

Cotton
……….

Coconut
……….

Capok
……….