A typical angiosperm flower consists of 4 floral parts namely – calyx, corolla, androecium, gynoecium.

Calyx – It is the outermost whorl of the flower and the members are called sepals which are green, leaf like and protect the flower in the bud stage.

Corolla – It is composed of petals. Petals are usually brightly coloured to attract insects for pollination.

Androecium – It is composed of stamens. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther.

Gynoecium – It is the female reproductive part of the flower and is made up of one or more carpels. A carpel consists of three parts namely stigma, style and ovary.