Can a sunflower plant have 2 flowers?

I was very surprised to learn that a 'sunflower' is actually a mass of many mini flowerlets bounded by large coloured petal leaves, and they're available in orange!

Anyway, the sunflower got attacked by a combination of aphids and lots of ants. For weeks I had been flicking the aphids off with a chopstick, but they kept coming back, and the ants multiplied in number! So i finally got a pesticide and killed them all! Very effective!

Another bud, which looks like the beginnings of another flower, has appeared midway up the stem. I thought each sunflower plant would have only one flower?

Would be interesting to see what appears :)