kail vs Brassica oleracea acephala

kail and Brassica oleracea acephala both are nouns.

Word	Noun	Adjective	Verb	Adverb
kail	Yes	No	No	No
Brassica oleracea acephala	Yes	No	No	No

As nouns, kail and Brassica oleracea acephala are synonyms defined as:

kail and Brassica oleracea acephala: a hardy cabbage with coarse curly leaves that do not form a head

Other synonyms of kail include borecole, cole, colewort, kale.

kail (noun)	Brassica oleracea acephala (noun)
coarse curly-leafed cabbage	a hardy cabbage with coarse curly leaves that do not form a head
a hardy cabbage with coarse curly leaves that do not form a head