tendergreen vs Brassica perviridis

tendergreen and Brassica perviridis both are nouns.

Word	Noun	Adjective	Verb	Adverb
tendergreen	Yes	No	No	No
Brassica perviridis	Yes	No	No	No

As nouns, tendergreen and Brassica perviridis are synonyms defined as:

tendergreen and Brassica perviridis: Asiatic plant cultivated for its swollen root crown and edible foliage

Other synonyms of tendergreen include Brassica rapa perviridis, spinach mustard.

tendergreen (noun)	Brassica perviridis (noun)
Asiatic plant cultivated for its swollen root crown and edible foliage	Asiatic plant cultivated for its swollen root crown and edible foliage