legume vs Leguminosae

legume and Leguminosae both are nouns.

Word	Noun	Adjective	Verb	Adverb
legume	Yes	No	No	No
Leguminosae	Yes	No	No	No

legume (noun)	Leguminosae (noun)
the seedpod of a leguminous plant (such as peas or beans or lentils)	a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae
an erect or climbing bean or pea plant of the family Leguminosae
the fruit or seed of any of various bean or pea plants consisting of a case that splits along both sides when ripe and having the seeds attach to one side of the case