Nothofagus truncata vs hard beech

Nothofagus truncata and hard beech both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nothofagus truncata	Yes	No	No	No
hard beech	Yes	No	No	No

As nouns, Nothofagus truncata and hard beech are synonyms defined as:

Nothofagus truncata and hard beech: tall New Zealand tree yielding very hard wood

Nothofagus truncata (noun)	hard beech (noun)
tall New Zealand tree yielding very hard wood	tall New Zealand tree yielding very hard wood