I wasn’t too far off. A thorough internet search revealed that our invaders are “devil’s walkingstick” trees, also known as Aralia spinosa L. According to the USDA, they are not found in Wisconsin. Well, they sure are now. And there are INSANE nurseries that are actually selling this demon plant. Our largest specimen would be worth >$100 from this place – and we’d be willing to part with all 3 thorny monsters for free – you just have to come dig it up yourself. Any takers? It’s the deal of the century! Bring a suit of armor.
Evil Plant Exposed