Thorny weed ID
I've recently discovered that I have this thorny weed growing all over my front yard. The children cannot walk across it even with flip flops on or that get poked. I'm wondering if it is something I can get rid of easily or if it will be an expensive and long process to get them out of my yard. We live on a military base, so I don't want to put a huge amount of money into a yard that I don't own and will only be here for maybe another year. Thanks in advance for looking.