arboresque vs arboreous

arboresque and arboreous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
arboresque	No	Yes	No	No
arboreous	No	Yes	No	No

As adjectives, arboresque and arboreous are synonyms defined as:

arboresque and arboreous: resembling a tree in form and branching structure

Other synonyms of arboresque include arboreal, arborescent, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike.

arboresque (adjective)	arboreous (adjective)
resembling a tree in form and branching structure	inhabiting or frequenting trees
	resembling a tree in form and branching structure
	abounding in trees