I was doing a bit of work on our allotment last week. Whilst kneeling in some longish grass I felt a sharp stab to my knee. Got up straight away. I didn't look immediately but my whole knee was burning and felt hot to touch even through my jeans.
Got home and looked to see a large cluster of angry spots and a few others going up and around the back of my leg.
Now I'm still alive so not too worried but curious to know what got me.
Does anyone have any ideas, there were not nettles or thorny plants, just grass.