Differentiate between Actinomorphic and zygomorphic flower

The flowers can be divided on the basis of plane of division and symmetry.

Actinomorphic Flowers – The flowers shows radial symmetry means the flower can be divided in equal halves in more than one vertical plane plane. The bisected parts are the mirror images of each other. 

For instances –  Daisy (Bellis perennis) , Mustard (Brassica nigra), Hibiscus. In zoological sciences the starfish has radial symmetry.

Zygomorphic Flowers – The flowers that posses bilateral symmetry that means the plants can be divided into two equal halves in one vertical plane only. The zygomorphic flowers are considered as irregular flowers due to differences in the size of petals or having odd number of units in a floral whorl. The flower consists of four floral whorls such as calyx, corolla, adrocieum and gynoceium.

For instances- Viola, Orchids etc

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Actinomorphic flowers are those which are radially symmetric , means the can be cut into two equal half in any plane passing through center. Example are mustard chill datura.

 

Zygomorphic flowers are those which can be cut into two equal half only in one vertical plane.

Ex are pea bean cassia gulmohar.