Looks like squash and tomato or marigolds to me. I would never just turn them over in the compost! I like crossbreds and even cross breed my own. Crossing broadens the genetic base. You mostly get good veggies from crossing but there are always the chance of a bad mix. I breed for health of plant 1st then flavor. And I like seeing things like this that nature obviously wanted to grow. Making it hardier than the others and added to seed stock.
