Brassica oleracea capitata vs head cabbage plant

Brassica oleracea capitata and head cabbage plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brassica oleracea capitata	Yes	No	No	No
head cabbage plant	Yes	No	No	No

As nouns, Brassica oleracea capitata and head cabbage plant are synonyms defined as:

Brassica oleracea capitata and head cabbage plant: any of various cultivated cabbage plants having a short thick stalk and large compact head of edible usually green leaves

Other synonyms of Brassica oleracea capitata include head cabbage.

Brassica oleracea capitata (noun)	head cabbage plant (noun)
any of various cultivated cabbage plants having a short thick stalk and large compact head of edible usually green leaves	any of various cultivated cabbage plants having a short thick stalk and large compact head of edible usually green leaves