papilionaceous

papilionaceous

[puh-pil-ee-uh-ney-shuhs]
adjective Botany.
1.
having an irregular corolla shaped somewhat like a butterfly, as the pea and other leguminous plants.
2.
belonging to the family Papilionaceae (Fabaceae), that is often included as part of the Leguminosae.

Origin:
1660–70; < Latin pāpiliōn- (stem of pāpiliō) butterfly + -aceous

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