Name that Tree

[Roman]

Greetings:

I had this little guy growing in my yard a couple months back. I thought someone had shoved a stick in the ground. But, the "stick" eventually grew a great big leaf on it. It was very funny to look at since the leaf nearly outsized the stick. So, I dug it up and planted it in a pot with some good soil. A couple months later, it has grown into what you see in the attached pictures. I think it's some sort of maple tree. Does anyone know what this is?

Thanks

 

[jimmyq]

could be a bigleaf maple, Acer macrophyllum, I see your location is private, can you give us a region perhaps?

 

[Roman]

I'm in the Northwest suburbs of Chicago. I was thinking it might be a sugar maple or a red maple. ???

EDIT: Hmmm... Looks like it could be a silver maple too according to the pics here (http://www.inmygarden.org/archives/2004/10/shades_of_maple_5.html)

 

[jimmyq]

possibly sugar maple, dont think it is red maple though, leaves are too big for juvenile plant lets see what some other posters have to say.

 

[treeseer]

Deep narrow sinuses look more like silver maple. Looks like you're taking good care of it; hope you find it a good home.