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  4. In terms of symmetry, the flower of which plant resembles the flowers of Cassia?

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Q. In terms of symmetry, the flower of which plant resembles the flowers of Cassia?

NTA AbhyasNTA Abhyas 2020Morphology of Flowering Plants

Solution:

When a flower can be divided into two similar halves only in one particular vertical plane, it is zygomorphic, e.g., pea, gulmohur, bean, Cassia. When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is said to be actinomorphic, e.g., mustard, datura, chilli. A flower is asymmetric (irregular) if it cannot be divided into two similar halves by any vertical plane passing through the centre, as in canna.