flame durrajong vs bottle tree

flame durrajong and bottle tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
flame durrajong	Yes	No	No	No
bottle tree	Yes	No	No	No

As nouns, bottle tree is a hypernym of flame durrajong; that is, bottle tree is a word with a broader meaning than flame durrajong:

flame durrajong: south Australian tree having panicles of brilliant scarlet flowers
bottle tree: an Australian tree of the genus Brachychiton

Other hypernyms of flame durrajong include bottle-tree.

flame durrajong (noun)	bottle tree (noun)
south Australian tree having panicles of brilliant scarlet flowers	an Australian tree of the genus Brachychiton