bok choy vs Brassica rapa chinensis

bok choy and Brassica rapa chinensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
bok choy	Yes	No	No	No
Brassica rapa chinensis	Yes	No	No	No

As nouns, bok choy and Brassica rapa chinensis are synonyms defined as:

bok choy and Brassica rapa chinensis: Asiatic plant grown for its cluster of edible white stalks with dark green leaves

Other synonyms of bok choy include bok choi, Chinese white cabbage, pak choi, pakchoi.

bok choy (noun)	Brassica rapa chinensis (noun)
elongated head of dark green leaves on thick white stalks	Asiatic plant grown for its cluster of edible white stalks with dark green leaves
Asiatic plant grown for its cluster of edible white stalks with dark green leaves