firewheel tree vs wheel tree

firewheel tree and wheel tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
firewheel tree	Yes	No	No	No
wheel tree	Yes	No	No	No

As nouns, firewheel tree and wheel tree are synonyms defined as:

firewheel tree and wheel tree: eastern Australian tree widely cultivated as a shade tree and for its glossy leaves and circular clusters of showy red to orange-scarlet flowers

Other synonyms of firewheel tree include Stenocarpus sinuatus.

firewheel tree (noun)	wheel tree (noun)
eastern Australian tree widely cultivated as a shade tree and for its glossy leaves and circular clusters of showy red to orange-scarlet flowers	eastern Australian tree widely cultivated as a shade tree and for its glossy leaves and circular clusters of showy red to orange-scarlet flowers