Korean lawn grass vs Zoysia japonica

Korean lawn grass and Zoysia japonica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Korean lawn grass	Yes	No	No	No
Zoysia japonica	Yes	No	No	No

As nouns, Korean lawn grass and Zoysia japonica are synonyms defined as:

Korean lawn grass and Zoysia japonica: lawn grass common in China and Japan; grown also in United States

Other synonyms of Korean lawn grass include Japanese lawn grass.

Korean lawn grass (noun)	Zoysia japonica (noun)
lawn grass common in China and Japan; grown also in United States	lawn grass common in China and Japan; grown also in United States