Which of the following is an example of an actinomorphic flower?
(1) Datura
(2) Cassia
(3) Pisum
(4)

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Question

Which of the following is an example of an actinomorphic flower?
(1) Datura
(2) Cassia
(3) Pisum
(4) Sesbania

Accepted Answer

Correct Answer: A — DaturaStep-by-step Solution:Flowers are classified based on symmetry. Actinomorphic flowers (radial symmetry) can be divided into two equal halves by any vertical plane passing through the center. Zygomorphic flowers (bilateral symmetry) can be divided into two equal halves only by one vertical plane.Datura (thorn apple) belongs to family Solanaceae. Its flowers are actinomorphic (regular) with radial symmetry.Cassia (family Fabaceae) has zygomorphic flowers (bilateral symmetry).Pisum (pea) also belongs to Fabaceae and has zygomorphic flowers.Sesbania (another member of Fabaceae) has zygomorphic flowers.Thus, Datura is the correct example of an actinomorphic flower.Key Concepts: Flower symmetry – actinomorphic (radial) vs zygomorphic (bilateral). Examples from families: Solanaceae (Datura), Fabaceae (Cassia, Pisum, Sesbania).

Which of the following is an example of an actinomorphic flower? (1) Datura (2) Cassia (3) Pisum (4) Sesbania

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Which of the following is an example of an actinomorphic flower? (1) Datura (2) Cassia (3) Pisum (4) Sesbania

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