true tulipwood vs Liriodendron tulipifera

true tulipwood and Liriodendron tulipifera both are nouns.

Word	Noun	Adjective	Verb	Adverb
true tulipwood	Yes	No	No	No
Liriodendron tulipifera	Yes	No	No	No

true tulipwood (noun)	Liriodendron tulipifera (noun)
light easily worked wood of a tulip tree; used for furniture and veneer	tall North American deciduous timber tree having large tulip-shaped greenish yellow flowers and conelike fruit; yields soft white woods used especially for cabinet work