Thank you! I think it might be the red mulberry, given this photo of one:

Could also be a white mulberry, which is more common and looks more or less the same. The internet says that one way to differentiate these two species is that the white mulberry has leaves that are smooth on the underside while the red mulberry has leaves that are fuzzy on the underside.

Red mulberry are not very common while various crosses of non-native mulberries are. But I agree, mulberry. We have a couple of mature mulberries here and I've seen many volunteer seedlings that look like this.

The underside feels like a soft sandpaper, and not glossy. But I don't know if the white mulberry could be slightly fuzzy as well, since I have never touched one. If it is a white hybrid I would probably remove it, as I have read it is a weed tree. If only there were a DNA kit...

I have a a young red mulberry here but it is raining so taking pix of the leaves won't help. I bought it from a reputable nursery so I'm pretty confident in its id. But the problem is that the crosses like "Illinois Everbearing" (which I also have here as I mature tree) are virtually impossible to tell the underside of the leaves apart from the native Morus rubra. I've tried knowing which is which. The Illinois Everbearing is a cross between M. alba and M. rubra and the birds plant young volunteers every where. The volunteers are more variable but usually equally hard to compare to M. rubra. I would guess yours to be a cross of some sort as they are far more common finds.

Are you sure that's even a woody plant? Check out Fatoua villosa, Mulberry Weed. I got some as an 'extra' in a nursery plant once.

Thanks. Since I've read white mulberries can produce black fruit, I guess I'll never know. From the photo below the leaf is more like the white variety, so perhaps it is a hybrid.

I checked and the Mulberry Weed (hairy crabweed) looks the same but has a hairy stem and can start seeding within two weeks. I have had mine growing since early spring and the stem is not hairy. Though I kinda of which it was so I could get rid of it....

Wouldn't feel too bad about getting rid of it whatever it is. It's highly unlikely it's a red mulberry, white mulberries are very very common, and the Mulberry Weed is... a weed.

Thanks, I guess even a hybrid is nothing spectacular....though I may wait to see if it flowers.