I almost didn't find it today, in fact. There were only a few plants where in other years I have found abundant numbers, and most of these were shriveled and dry, with only the bleached-out remnants of their clover-like flowerheads hanging down. I guess the recent heat simply cooked them where they grow among flat rocks that hold the heat of the sun. I did manage to find one puny little plant that still had green leaves and the blossoming flowerhead you can see in the photo above. Those tiny little yellow dots are the actual flowers, while the showy purple parts are the flower bracts.
The second spider dropped off when I touched its perch, but I could still see its bright yellow self scurrying through the grass. These spiders must have only recently moved from the yellow goldenrod to the greenish-ivory Boneset, since their color had yet to change to match their new lurking place. Goldenrod Spiders are able to do that, but it does take some time. At any rate, the lack of camouflage did not seem to hamper this spider's hunting prowess. Poor butterfly!