Too soon to tell. Submit again when more identifiable leaf formation is present.

They could be a vine still. Some vines send up suckers from roots.

Yes maybe a vine Babs.Seems like something fast growing. I find the stem interesting.Reminds me of bamboo.

It's growing in my backyard. I live in central Florida. I pulled all the vines out and one part of the vine that was pulled was attached to what looked like a small potato.

Sure looks like emerging bamboo culms.What are those knobby root like things in the soil next to the plant?Are they connected to the plant? What climate zone is it in? A fence separating neighbors won't stop bamboo from running.

Ginger of some sort...

That would fit too. It's probably grown a bit more already.A new photo might be more revealing.I looked and saw you were in Florida.Was this plant completely hidden by vines?

Mention of "potato" evokes thoughts of Dioscorea genus & its' various members but FWIW, I like the bamboo suggestion.

I once had a cinnamon vine,Dioscoria batatas.It started to sucker from it's huge main tuber,so I tried to remove it,but I never located the central main tuber,so it took years of pulling out before it finally gave up the ghost. It produced many small, potato-like tubers all along the vine that fell off and grew into new plants.Thing is,the fragrance wasn't really all I had it hyped up to be, and really nothing to write home about.Dioscorias can be very invasive.This was in Illinois,40 miles south of Chicago.