French honeysuckle vs Centranthus ruber

French honeysuckle and Centranthus ruber both are nouns.

Word	Noun	Adjective	Verb	Adverb
French honeysuckle	Yes	No	No	No
Centranthus ruber	Yes	No	No	No

As nouns, French honeysuckle and Centranthus ruber are synonyms defined as:

French honeysuckle and Centranthus ruber: European herb with small fragrant crimson or white spurred flowers

Other synonyms of French honeysuckle include red valerian.

French honeysuckle (noun)	Centranthus ruber (noun)
perennial of southern Europe cultivated for forage and for its nectar-rich pink flowers that make it an important honey crop	European herb with small fragrant crimson or white spurred flowers
European herb with small fragrant crimson or white spurred flowers