Foeniculum vulgare vs common fennel

Foeniculum vulgare and common fennel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Foeniculum vulgare	Yes	No	No	No
common fennel	Yes	No	No	No

As nouns, Foeniculum vulgare and common fennel are synonyms defined as:

Foeniculum vulgare and common fennel: strongly aromatic with a smell of aniseed; leaves and seeds used for seasoning

Foeniculum vulgare (noun)	common fennel (noun)
strongly aromatic with a smell of aniseed; leaves and seeds used for seasoning	leaves used for seasoning
	strongly aromatic with a smell of aniseed; leaves and seeds used for seasoning