Brassica rapa pekinensis vs pe-tsai

Brassica rapa pekinensis and pe-tsai both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brassica rapa pekinensis	Yes	No	No	No
pe-tsai	Yes	No	No	No

As nouns, Brassica rapa pekinensis and pe-tsai are synonyms defined as:

Brassica rapa pekinensis and pe-tsai: plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia

Other synonyms of Brassica rapa pekinensis include celery cabbage, Chinese cabbage, napa.

Brassica rapa pekinensis (noun)	pe-tsai (noun)
plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia	plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia