corrugative--prophetes.ai

corrugative, a. rare.
  (ˈkɒr(j)uːgeɪtɪv)
  [f. corrugate v.: see -ive.]
  Characterized by corrugation.

1866 Treas. Bot., Corrugated, Corrugative, when the parts are crumpled up irregularly, as the petals of the poppy, or the skin of some seeds.

Oxford English Dictionary