noun
- plural of involucre; whorls of bracts surrounding a flower head or inflorescence in plants
Usage: botanical term
Examples
- The sunflower’s involucres consist of green, leaf-like structures at the base of the flower head.
- Botanists examine the involucres to help identify different species of daisies.
- The involucres protect the developing flower buds before they bloom.
- In composite flowers, the involucres form a cup-like structure around the base.
- The involucres of dandelions are easily recognizable by their pointed, overlapping bracts.
- Students learned to identify plants by observing their involucres and other floral parts.