adjective

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

  ‘The flowers have a typical papilionaceous corolla.’

  More example sentences

  • ‘Flowers of normal plants are typically papilionaceous with a large standard petal, two free-wing petals, and two fused-keel petals.’
  • ‘The corolla of Trigonellinae is typically papilionaceous, comprising a standard petal, two wing petals and a keel made up of two marginally fused petals.’