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Answer:
A staminate flower contains stamens only while a pistillate flower only contains carpels or pistils. This is the major difference. Stamens are male reproductive organs while pistils are female reproductive structures.
Out of the many other structures of a flower, stamens and pistils are the reproductive parts. In angiosperms, they participate in reproduction. Stamens consist of anthers and filaments which enclose male gametes. Pistil on the other hand is a female reproductive structure consisting of stigma, ovary and style. Though almost all flowers can be classified into pistillate and staminate flowers, some flowers have both male and female structures in the same flower.
Staminate Flowers
Consists of male reproductive structures only and is an androecious or male flower
Stamen, the male reproductive structure has two parts – filament and anther
It does not contain activated female reproductive parts
Cucumber a dioecious plant produces staminate flowers Chrysanthemum produces disc florets which are staminate flowers
Pistillate Flowers
Consists of female reproductive structures only known as the carpels or pistils
They do not have activated stamens. But they have a swollen base due to the presence of the ovary
Carpels have three parts – style, stigma and ovary
Pistillate flowers obtain pollens from other flowers for fertilization
Example – cucumber has pistillate flowers while bearing staminate flowers separately
Difference between Staminate and Pistillate Flowers
The table below depicts a few differences between Staminate and Pistillate Flowers
Staminate Flowers Pistillate Flowers
What are they?
Flower structures possessing stamens only Flower structures possessing pistils only
Flower type
Uni sexual Male flowers Uni sexual Female flowers
Stamens
Active stamens present Active stamens absent
Pistils
Active pistils absent Active pistils present
Produce
Pollen grains Ovules
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