Papilionaceae

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Definition

Noun 1. A family of leguminous plants: Papilionaceae refers to a large family of flowering plants, now typically considered a subfamily (Faboideae or Papilionoideae) within the family Fabaceae (Leguminosae). The defining characteristic is their flowers, which have a distinctive, irregular shape resembling a butterfly.

Usage
  • Scientific/Botanical Context: The term is used primarily in botanical classification to describe a major group of plants including peas, beans, clover, and alfalfa.
Advanced Usage
  • Taxonomic Note: In modern botanical taxonomy, "Papilionaceae" is often treated as the subfamily Papilionoideae within the family Fabaceae (or Leguminosae). The term remains useful for describing the specific floral morphology.
Variants and Related Words
  • Papilionaceous (adjective): Describing the characteristic butterfly-shaped flower of this plant group.
  • Faboideae (noun): The modern scientific subfamily name, often used synonymously with Papilionoideae.
  • Leguminosae/Fabaceae (noun): The broader family name encompassing this and other related subfamilies.
Synonyms
  • Pea family (common name)
  • Papilionoideae (modern taxonomic synonym)
  • Faboideae (modern taxonomic synonym)
Related Terms and Concepts
  • Legume (noun): The fruit or seedpod typical of plants in this family.
  • Nitrogen fixation: A key ecological role of many plants in this family, through symbiotic bacteria in root nodules.
Noun
  1. leguminous plants whose flowers have butterfly-shaped corollas; commonly included in the family Leguminosae

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