What is this demon spawn and how should I deal with it?

Holy crap that looks evil! Where is it growing (what part of the world)? That will help narrow down an ID.

Looks like it might be a Dewberry:

Carter said:Holy crap that looks evil! Where is it growing (what part of the world)? That will help narrow down an ID.

Central Maryland, U.S

Definitely a member of the Bramble bunch (Rubus sp.).

Looks like wineberry - Rubus phoenicolasius

I have no idea what it is, but as a kid, we would run through fields and something similar would "vine" out about 6 inches off the ground..... holy heck did it hurt when you ran into one... cut your legs up and stung like fire!!!!

If you let it go to fruit for fun, you will be able to tell if it is wineberry or dewberry. Wineberries have fuzzy sepals covering the unripe fruit. If you don't want the fruit then pull it now.

I agree with Jon: Dewberry. The Blackberries I grow are not that evil.

The difference between blackberry and dewberry is that dewberries will have hundreds of those small thorns, whereas blackberries have less, but larger thorns.

Except it's a japanese wineberry. They are invasive and everywhere. You can tell by that red winter silhouette.
http://dendro.cnre.vt.edu/dend...