Linnaea borealis vs subshrub

Linnaea borealis and subshrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Linnaea borealis	Yes	No	No	No
subshrub	Yes	No	No	No

As nouns, subshrub is a hypernym of Linnaea borealis; that is, subshrub is a word with a broader meaning than Linnaea borealis:

Linnaea borealis: creeping evergreen subshrub of the northern parts of Europe and Asia with delicate fragrant tubular bell-shaped usually pink flowers borne in pairs
subshrub: low-growing woody shrub or perennial with woody base

Other hypernyms of Linnaea borealis include suffrutex.

Linnaea borealis (noun)	subshrub (noun)
creeping evergreen subshrub of the northern parts of Europe and Asia with delicate fragrant tubular bell-shaped usually pink flowers borne in pairs	low-growing woody shrub or perennial with woody base