Question

Why sunflower is not considered for studying parts of flower ?

Answer 1

no if we want to study it we can

Answer 2

ANSWER:  

Sunflower is not considered for studying parts of a flower because it does not have male or female gametes i.e. stamen and pistil.

EXPLANATION:

The lack of male or female gametes i.e. stamen and pistil make it a neuter flower. It does not have abilities to have the fertilization process. Most of the studies include the male and female parts of the flower and the process of sexual reproduction and fertilization.  

The sunflower is not a single flower; it is the combination of flowers which are present in a thousand in numbers.