Japanese oak vs Lithocarpus glabra

Japanese oak and Lithocarpus glabra both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japanese oak	Yes	No	No	No
Lithocarpus glabra	Yes	No	No	No

As nouns, Japanese oak and Lithocarpus glabra are synonyms defined as:

Japanese oak and Lithocarpus glabra: small evergreen tree of China and Japan

Other synonyms of Japanese oak include Lithocarpus glaber.

Japanese oak (noun)	Lithocarpus glabra (noun)
small evergreen tree of China and Japan	small evergreen tree of China and Japan
oak with moderately light fine-grained wood; Japan