bracteal--prophetes.ai

bracteal, a.
  (ˈbræktiːəl)
  [f. L. bracte-a bract + -al¹.]
  Pertaining to, or of the nature of, bracts.

1770 Phil. Trans. LX. 523 The flower of the Gordonia Lasianthus..with its calyx and bracteal leaves.

Oxford English Dictionary