Q.I Find It Difficult To Choose A Family Of Flowering Plants
I need to write a compare and contrast essay about different genera within the same family of flowers. Please help to choose a family of flowers for that task, `cause I really have no experience in gardening.

Certified GKH Gardening Expert
This can be done with any family of plants, so there isn't really a way that I can help you choose. That is something that will be completely up to you. Just compare and contrast a family of plants that you like. Find a plant that is of interest to you, then find out what family it is in. Then you can compare and contrast them with research.
One of my favorites is the Rosaceae family. It consists of about 5000 species in about 90 genera. Cherries, Blackberries, and Roses are all part of this family.