sunrose vs shrub

sunrose and shrub both are nouns.

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

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

sunrose: any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of sunrose include bush.

sunrose (noun)	shrub (noun)
any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions	a low woody perennial plant usually having several major stems