involucral

/ɪnˈvɑːljʊkrəl/
adjective
  1. Relating to or having an involucre (a ring of bracts surrounding a flower cluster).
    • The involucral bracts of the sunflower are large and green.
    • The botanist noted the involucral arrangement in her field journal.
    • Involucral structures vary widely among different plant families.
Synonyms
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