papilionaceous

 
Pronunciation: /pəˌpɪlɪəˈneɪʃəs/

adjective

Botany
  • relating to or denoting leguminous plants of a group (subfamily Papilionoideae or family Papilionaceae) with flowers that resemble a butterfly.

Origin:

mid 17th century: from modern Latin Papilionaceae (plural), based on Latin papilio 'butterfly', + -ous