Japanese lime vs Tilia japonica

Japanese lime and Tilia japonica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japanese lime	Yes	No	No	No
Tilia japonica	Yes	No	No	No

As nouns, Japanese lime and Tilia japonica are synonyms defined as:

Japanese lime and Tilia japonica: medium-sized tree of Japan used as an ornamental

Other synonyms of Japanese lime include Japanese linden.

Japanese lime (noun)	Tilia japonica (noun)
medium-sized tree of Japan used as an ornamental	medium-sized tree of Japan used as an ornamental