Flower is complete when it has

calyx, corolla, androecium and gynoecium

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calyx and corolla

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androecium and gynoecium

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corolla, androecium and gynoecium

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Solution

The correct option is A calyx, corolla, androecium and gynoecium
The flower may be described as complete if it bears all the floral whorls or floral parts such as calyx, corolla, androecium and gynoecium. Example: Rose, Hibiscus.

Complete flower with all four whorls

The flower becomes incomplete if any one of the whorl is absent. Example: Begonia, gourds, sweet corn.

Incomplete flower with androecium/stamens absent

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Similar questions

All flowers have androecium and gynoecium.

\begin{matrix} A & B 1. & Androecium & a & Whorl of sepals 2. & Gynoecium & b & Whorl of petals 3. & Corolla & c & Whorl of stamens 4. & Calyx & d & Whorl of pistil/carpel \end{matrix}

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