How do you cross-breed the lilac with daffodils?

Lilacs cannot be cross-bred with daffodils. Though they are both flowering dicots, the lilac is a woody perennial and the daffodil is a herbaceous perennial. They are too far apart to be genetically compatible. However, in the internet game, Farmville, I hear they have cross-bred one for the game, and it's called a Lilac Daffy.