needle wood vs needle-wood

needle wood and needle-wood both are nouns.

Word	Noun	Adjective	Verb	Adverb
needle wood	Yes	No	No	No
needle-wood	Yes	No	No	No

As nouns, needle wood and needle-wood are synonyms defined as:

needle wood and needle-wood: large bushy shrub with pungent pointed leaves and creamy white flowers; central and eastern Australia

Other synonyms of needle wood include Hakea leucoptera, needlewood.

needle wood (noun)	needle-wood (noun)
large bushy shrub with pungent pointed leaves and creamy white flowers; central and eastern Australia	large bushy shrub with pungent pointed leaves and creamy white flowers; central and eastern Australia