Thistle Leaf.....

.....with the spiky edges that always hurt when you try to pull them up out of your grass--they're really fast spreading weeds! I pulled one up out of the ground to take this picture, so I can attest to the fact that they're painful when your finger comes in contact with those sharp things!  Should have worn my gloves!  This was the smallest leaf on the weed & you could barely see these pointed spikes until you saw them through the macro lens, which made them look huge :))