king orange vs temple orange tree

king orange and temple orange tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
king orange	Yes	No	No	No
temple orange tree	Yes	No	No	No

As nouns, king orange and temple orange tree are synonyms defined as:

king orange and temple orange tree: large citrus tree having large sweet deep orange fruit that is easily peeled; widely cultivated in Florida

Other synonyms of king orange include Citrus nobilis, tangor, temple orange.

king orange (noun)	temple orange tree (noun)
large citrus tree having large sweet deep orange fruit that is easily peeled; widely cultivated in Florida	large citrus tree having large sweet deep orange fruit that is easily peeled; widely cultivated in Florida