Question: 118. Which of the following is an example of actinomorphic flower?
(1) Datura
(2) Cassia
(3) Pisum
(4) Sesbania
Answer: Option (1)
Explanation:
Actinomorphic flowers are those which can be divided into two equal halves by
any vertical plane passing through the center.
Datura shows radial symmetry, as multiple vertical planes can divide the flower into equal halves,
so it is actinomorphic.
Cassia, Pisum, and Sesbania have bilaterally symmetrical flowers,
which can be divided into equal halves only by a single vertical plane, making them zygomorphic.
Therefore, Datura is an example of an actinomorphic flower.