tolu balsam tree vs tolu

tolu balsam tree and tolu both are nouns.

Word	Noun	Adjective	Verb	Adverb
tolu balsam tree	Yes	No	No	No
tolu	Yes	No	No	No

tolu balsam tree (noun)	tolu (noun)
medium-sized tropical American tree yielding tolu balsam and a fragrant hard wood used for high-grade furniture and cabinetwork	aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups