white poplar vs true tulipwood

white poplar and true tulipwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
white poplar	Yes	No	No	No
true tulipwood	Yes	No	No	No

As nouns, white poplar and true tulipwood are synonyms defined as:

white poplar and true tulipwood: light easily worked wood of a tulip tree; used for furniture and veneer

Other synonyms of white poplar include tulipwood, whitewood, yellow poplar.

white poplar (noun)	true tulipwood (noun)
a poplar that is widely cultivated in the United States; has white bark and leaves with whitish undersurfaces	light easily worked wood of a tulip tree; used for furniture and veneer
light easily worked wood of a tulip tree; used for furniture and veneer