More than just a pretty flower, thistles are great pollen, nectar and food sources for insects and other wildlife such as this tiny plant bug seen here. If you see any thistles while out and about, it sometimes pays off to make note of its location and check back every now and then for interesting insects like swallowtail butterflies, hummingirds, hawk moths and a variety of interesting bees.
This flowers appears among are spring wildflowers and attracts all sorts of wildlife. I captured a few images just this week in an open field. Lovely depth of field. Voted.