Ononis repens vs rest-harrow

Ononis repens and rest-harrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ononis repens	Yes	No	No	No
rest-harrow	Yes	No	No	No

As nouns, Ononis repens and rest-harrow are synonyms defined as:

Ononis repens and rest-harrow: European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners

Other synonyms of Ononis repens include restharrow.

Ononis repens (noun)	rest-harrow (noun)
European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners	European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners
	Eurasian plant having loose racemes of pink or purple flowers and spiny stems and tough roots