Brassica oleracea vs cultivated cabbage

Brassica oleracea and cultivated cabbage both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brassica oleracea	Yes	No	No	No
cultivated cabbage	Yes	No	No	No

As nouns, Brassica oleracea and cultivated cabbage are synonyms defined as:

Brassica oleracea and cultivated cabbage: any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers

Other synonyms of Brassica oleracea include cabbage.

Brassica oleracea (noun)	cultivated cabbage (noun)
wild original of cultivated cabbages; common in western coastal Europe	any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers
any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers