Unknown From the backyard

[makarovnik]

I don't like buying anything until I research it enough to where I feel comfortable buying it. So me collecting this was against what I do but it has to go. It grows very fast I have cut it to a stub thinking I could have killed it 2 years in a row. It is too close to my shed and my better half wanted it gone. This was my first time collecting anything. Here is pics and hopefully someone knows what it is by the leaves. It's the only thing I have to go buy. I will post bigger pics of the leaves tomorrow.

 

[rodeolthr]

It's difficult to tell, but perhaps some type of mock orange?

 

[BrianBay9]

Hard to see the leaves in those pics

 

[makarovnik]

Here is a pic of the leaves