white basswood vs linden tree

white basswood and linden tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
white basswood	Yes	No	No	No
linden tree	Yes	No	No	No

As nouns, linden tree is a hypernym of white basswood; that is, linden tree is a word with a broader meaning than white basswood:

white basswood: American basswood of the Allegheny region
linden tree: any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber

Other hypernyms of white basswood include basswood, lime, lime tree, linden.

white basswood (noun)	linden tree (noun)
American basswood of the Allegheny region	any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber