rutabaga plant vs Brassica napus napobrassica

rutabaga plant and Brassica napus napobrassica both are nouns.

Word	Noun	Adjective	Verb	Adverb
rutabaga plant	Yes	No	No	No
Brassica napus napobrassica	Yes	No	No	No

As nouns, rutabaga plant and Brassica napus napobrassica are synonyms defined as:

rutabaga plant and Brassica napus napobrassica: a cruciferous plant with a thick bulbous edible yellow root

Other synonyms of rutabaga plant include rutabaga, swede, Swedish turnip, turnip cabbage.

rutabaga plant (noun)	Brassica napus napobrassica (noun)
a cruciferous plant with a thick bulbous edible yellow root	a cruciferous plant with a thick bulbous edible yellow root