derris vs shrub

derris and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
derris	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of derris; that is, shrub is a word with a broader meaning than derris:

derris: any of various usually woody vines of the genus Derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of derris include bush.

derris (noun)	shrub (noun)
any of various usually woody vines of the genus Derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons	a low woody perennial plant usually having several major stems