I think this is an alien Solanaceae that I found in Kent bog.  Another Solananaceae I discovered was in Palo Verde and was covered in spines.  It inhabited nearly the entire wetland area while the wetland was dry and, when the first rains came, the plants quickly grew, flowered and set fruit.  As the wetland became inundated, the plants died and their fruits and spines were dispersed.  These spines eventually forced me to abandon my tennis shoes while wading in favor of hot, rubber waders.