I like to plant flowers!
Cool, I really like the narcissus plant family. They have some beautiful flowers!
Oh! What kind of flowers are in that family?
The daffodil, the jonquil, and the daffadowndilly are some of the members of the genus.
Oh, those are beautiful. What other kinds of plants do you like?
All kinds but I am really interested in cultivated plant taxonomy. I like to see how all of the flowers are related.
Cool! What is cultivated plant taxonomy? 
It is the study and the theory of the science that identifies and classifies different plants.