Which of these is an example for zygomorphic flower with imbricate aestivation ?

Options

A. Calotropis
B. Mustard
C. Canna
D. Cassia

Answer

D

Explanation

In cassia, imbricate aestivation is found. The odd petal is posterior and completely inside. One of the anterior petals is completely outside. The remaining petals show regular overlapping in ascending manner.