Definition

1. Noun:
   • (Botany) The whorl of petals of a flower: The "corolla" is the collective term for all the petals of a single flower, which together form the inner part of the floral envelope (perianth), often the showy, colored part that attracts pollinators.

Usage Examples

• Noun:
  • The rose's vibrant red corolla was fully open in the morning sun.
  • Botanists study the shape and color of the corolla to help classify plant species.
  • The reference states: "we cultivate the flower for its corolla."

Advanced Usage

• Corolla tube: Refers to a corolla where the petals are fused together to form a tubular structure.
  • The corolla tube of the honeysuckle is adapted for pollination by moths.
• Corolla lobe: Refers to the free, projecting parts of a fused corolla.
  • The five corolla lobes of the morning glory are clearly visible.

Variants and Related Words

• Corollaceous (adj): Pertaining to or resembling a corolla.
• Corollate (adj): Having a corolla.

Synonyms

• Petals (when referring to the individual segments, not the collective structure).
• Blossom (in a general, non-technical sense for the flower's attractive part).

Antonyms

• Calyx: The whorl of sepals, which is the outer part of the floral envelope (perianth).

Notes

• In botanical terminology, the "corolla" is specifically the inner whorl of the perianth, situated inside the calyx (the sepals). It is a standard term used to describe floral morphology.

Noun

1. (botany) the whorl of petals of a flower that collectively form an inner floral envelope or layer of the perianth
   • we cultivate the flower for its corolla