tonka bean tree vs bean tree

tonka bean tree and bean tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
tonka bean tree	Yes	No	No	No
bean tree	Yes	No	No	No

As nouns, bean tree is a hypernym of tonka bean tree; that is, bean tree is a word with a broader meaning than tonka bean tree:

tonka bean tree: tall tropical South American tree having pulpy egg-shaped pods of fragrant black almond-shaped seeds used for flavoring
bean tree: any of several trees having seedpods as fruits

tonka bean tree (noun)	bean tree (noun)
tall tropical South American tree having pulpy egg-shaped pods of fragrant black almond-shaped seeds used for flavoring	any of several trees having seedpods as fruits