OK, I think you mean those little prickle ball thingies. I thought jagger bushes referred generically to any picker bushes, like even blackberry bushes. xsmommy, a ruling on the proper use?
You get the idea. They’re a type of jagger.
jaggers are those little things that would become imbedded in your socks and your clothes! they were not balls of any sort! and you had to pick them out bc if you just washed them, they’d stay in!