Acacia melanoxylon vs blackwood

Acacia melanoxylon and blackwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acacia melanoxylon	Yes	No	No	No
blackwood	Yes	No	No	No

As nouns, blackwood is a hypernym of Acacia melanoxylon; that is, blackwood is a word with a broader meaning than Acacia melanoxylon:

Acacia melanoxylon: tall Australian acacia yielding highly valued black timber
blackwood: any of several hardwood trees yielding very dark-colored wood

Other hypernyms of Acacia melanoxylon include blackwood tree.

Acacia melanoxylon (noun)	blackwood (noun)
tall Australian acacia yielding highly valued black timber	any of several hardwood trees yielding very dark-colored wood
	very dark wood of any of several blackwood trees