Here's another view of it.

Could it be plain 'ole Kochia scoparia?

I keep leaning towards one of the fireweeds (weedy epilobium) but I'm not quite sure.

Thanks for replying. I don't think it's Kochia scoparia, because the leaves are smooth, not fuzzy, and it doesn't seem to have a taproot. I don't think it's fireweed either. It doesn't look like the photos of immature fireweed. The stems are red when it's small. I haven't seen it flower. When young, it's smooth, soft, flexible but brittle.

Horseweed?

Thanks, river_city, I don't think it's horseweed either. It doesn't grow vertically like horseweed seems to. The stems are curvy and it looks like the shape of a tree. They might end up being what I call tumbleweeds around here. I never see them with any green on them, just dry, stiff, pale tan multi-branched mini-trees rolling around. (Not the same as what most of the country calls tumbleweeds.)

Did you ever recieve an answer to your question? I am also trying to identify that same weed.