bowstring hemp vs natural fiber

bowstring hemp and natural fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
bowstring hemp	Yes	No	No	No
natural fiber	Yes	No	No	No

As nouns, natural fiber is a hypernym of bowstring hemp; that is, natural fiber is a word with a broader meaning than bowstring hemp:

bowstring hemp: strong fiber that resembles hemp; obtained from sansevieria and used for e.g. cordage
natural fiber: fiber derived from plants or animals

Other hypernyms of bowstring hemp include natural fibre.

bowstring hemp (noun)	natural fiber (noun)
grown as a houseplant for its mottled fleshy sword-shaped leaves or as a source of fiber	fiber derived from plants or animals
strong fiber that resembles hemp; obtained from sansevieria and used for e.g. cordage
hemp obtained from the sansevieria