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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:

 

Type of Symmetry

Description

Examples

1.

Actinomorphic (Symmetrical)

Actinomorphic flowers can be divided by any vertical plane into two equal and similar halves.

Catharanthus roseus, Brinjal, Mustard

2.

Zygomorphic (Monosymmetrical)

Zygomorphic flowers can be divided into two equal halves by only one vertical division.

Ocimum, Pea

3.

Asymmetrical (Irregular)

Asymmetrical flowers cannot be divided into two equal halves by any vertical division.

Orchids, Canna

 

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