pellitory-of-Spain vs Anacyclus pyrethrum

pellitory-of-Spain and Anacyclus pyrethrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
pellitory-of-Spain	Yes	No	No	No
Anacyclus pyrethrum	Yes	No	No	No

As nouns, pellitory-of-Spain and Anacyclus pyrethrum are synonyms defined as:

pellitory-of-Spain and Anacyclus pyrethrum: a small Mediterranean plant containing a volatile oil once used to relieve toothache

Other synonyms of pellitory-of-Spain include pellitory.

pellitory-of-Spain (noun)	Anacyclus pyrethrum (noun)
a small Mediterranean plant containing a volatile oil once used to relieve toothache	a small Mediterranean plant containing a volatile oil once used to relieve toothache