A Dandelion or a Daffodil?

On the way to the car yesterday afternoon, Tristan stopped to pick a dandelion. He showed it to me, and I said "oh, that's a pretty dandelion!". He repeated dandelion to himself a couple of times, and then as I was buckling him into his carseat he announced, "it's a DAFFODIL". I reminded him that it wasn't a daffodil, it was a dandelion. We argued this back and forth a few times, with him getting louder and louder and louder. Finally, I tried reason. "Well, if it's a daffodil then you're going to get in trouble, because you're not supposed to pick daffodils. Which one is it?"

It turned out to be a dandelion after all.