What kind of truck/suv wheel is this? Easy with pictures included?

Ok, so I had a flat on my Expedition about a month ago. I am finally getting it taken care of. When I went to the tire shop the guy said that this rim doesn't even match my vehicle. I have no other way of getting the rim, except from when I had work done at the tire shop prior. So pretty much I have this rim that doesn't fit my suv that mysteriously popped up in my back seat. Lol, I have been lugging this thing around for a month now and it is probably someone elses. It measures in at around 17 inches, i think it was maybe a 1/4 inch over.