East Indian rosebay vs shrub

East Indian rosebay and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
East Indian rosebay	Yes	No	No	No
shrub	Yes	No	No	No

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

East Indian rosebay: tropical shrub having glossy foliage and fragrant nocturnal flowers with crimped or wavy corollas; northern India to Thailand
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of East Indian rosebay include bush.

East Indian rosebay (noun)	shrub (noun)
tropical shrub having glossy foliage and fragrant nocturnal flowers with crimped or wavy corollas; northern India to Thailand	a low woody perennial plant usually having several major stems