This aestivation is imbricate.
Those forms of aestivation are such as occur in cyclic flowers, and they are included under circular aestivation.
The circular aestivation is generally associated with a regular calyx and corolla, while the spiral aestivations are connected with irregular as well as with regular forms.
The manner in which the parts are arranged in the flower-bud with respect to each other before opening is the aestivation or praefloration.
- Diagram to illustrate reduplicative or reduplicate aestivation, in which the parts of the whorl are slightly turned outwards at the edges.