Sepals

Types of Flower
1. Complete Flower: If all the four whorls are present in the flower it is called Complete Flower (Gynoecium, Androecium, corolla, calyx).
2. Incomplete Flower: If any one of the four whorls are absent in Flower it is called Incomplete Flower (Gynoecium, Androecium, corolla, calyx)
3. Bisexual Flower: If a flower contains both male and female reproductive parts it is called Bisexual Flower.
4. Unisexual Flower: If Flower has only one reproductive part then it is called Unisexual Flower.
Pistillate Flower: If the only female part is present
Staminate Flower: If the only male part is present i.e. Androecium the flower is called Staminate Flower.
5. Dichlamydeous Flowers: If a flower contains both Calyx and Corolla it is known as Dichlamydeous Flower. It is most common in plants.
6. Monochlamydoeus Flower: If a flower contains only one whorl, the whorl which is present is known as perianth and this is seen in the case of monocot families e,g Liliaceae
7. Achlamydeous Flower: If Calyx and Corolla are absent in flower it is called Achlamydeous Flower.