Looks like Rumex crispus or yellow/curled dock to me. Called "yellow dock" because of the root color and "curled dock" because of the waviness or crinkling of the leaves which is visible in your picture. FataMorgana

The three that seem most likely for your area are Rumex crispus, obtusifolius, and paraguayensis. Your plants seem to have quite a few leaves coming out of the inflorescence, so paraguayensis is a good candidate. A closer shot of the flowers would help.

westes, You have a million questions. Go visit a local nursery in your area and try to get some answers. Or look online. The species you want is Sasanqun camellia. It won't damage your wall, they grow slowly, you will have less work if you don't want it so tight as you say. They also take more sun than the Japanica, I have both. Research and visit a private nursery, not a big box store for answers.

A sterile round lobed Sweetgum like this one in one of the gardens I tend Round-Lobed Sweetgum (monrovia.com) is 60+ feet tall at 25 years, has never once had fall color in 14 years and holds on to the frozen brown leaves all winter thinking it's a Pin oak. Plus the roots sucker like a cherry and the suckers have normal pointy lobed leaves which might have fall color like a normal sweetgum is capable of if I wasn't always cutting them off.