u/Medium_Theory_8185

I'd appreciate help verifying the identity of this seedling and deciding how to deal with it. Years ago there was a large Asian Wisteria on this property. It was removed; I was not involved in the process. Then today I saw this thing sprouting from the lawn by a recently planted Cascara tree. This unfortunately is the best picture I could get. It's the only seedling of the sort I'm seeing and the first time there's been any possible sighting of the Wisteria in well over a decade. I'm figuring it's the Wisteria reasserting itself but I'd appreciate any second opinions since it's not impossible it's something else entirely. Thanks!

eta: I'm in the Pacific Northwest.

Any input is very much appreciated. Sorry if the pictures aren't great. I'm Zone 8 (PNW), I don't know where the tree is from. I bought it about a week ago from a local nursery. It has abundant new leaves that seem healthy, but also these gray patches and some grayish branches and odd rumpling of the leaves. The tree isn't droopy and there's been no leaf loss to speak of since I got it. It's mostly the bark and twiggy appearance of some of the smaller branches that are bothering me. Comments I've seen on similar looking trees have ranged from a diagnosis of unremarkable seasonal stress response to irreversible death sentence.

Thanks for looking.