Symmetry of a flower is determined depending upon the division of a flower into two equal halves along any diameter.
The different types of symmetry of a flower are listed in the table given below:
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Type of Symmetry
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Description
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Examples
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1.
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Actinomorphic (Symmetrical)
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Actinomorphic flowers can be divided by any vertical plane into two equal and similar halves.
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Catharanthus roseus, Brinjal, Mustard
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2.
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Zygomorphic (Monosymmetrical)
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Zygomorphic flowers can be divided into two equal halves by only one vertical division.
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Ocimum, Pea
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3.
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Asymmetrical (Irregular)
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Asymmetrical flowers cannot be divided into two equal halves by any vertical division.
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Orchids, Canna
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