All For Gardening: Anyone have an idea what this volunteer is? It popped up with my sunflowers.

I was weeding my [sunflower bed](https://i.imgur.com/JPRf673.jpg) today, and I noticed this volunteer:

[https://i.imgur.com/Sgkbxvw.jpg](https://i.imgur.com/Sgkbxvw.jpg)

Am guessing it was left over from my compost pile, so who knows what it could be, clearly my pile didnt heat up hot enough long enough… Either that or I have the birds/chipmunks to thank for planting it.

[https://imgur.com/a/AFnSxY7](https://imgur.com/a/AFnSxY7) the rest of my garden so far, heck of a difference 2 weeks makes.