involucel
/ɪnˈvɑːljʊsɛl/
noun
- A small secondary cluster of bracts (modified leaves) beneath a flower or flower cluster, especially in plants of the carrot family.
- The involucel of the wild carrot plant helps protect the tiny flowers.
- Botanists examine the involucel to identify different species of parsley.
- Each small flower group in the dill plant has its own involucel.