Ononis repens vs subshrub

Ononis repens and subshrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ononis repens	Yes	No	No	No
subshrub	Yes	No	No	No

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

Ononis repens: European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners
subshrub: low-growing woody shrub or perennial with woody base

Other hypernyms of Ononis repens include suffrutex.

Ononis repens (noun)	subshrub (noun)
European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners	low-growing woody shrub or perennial with woody base