On our day at Thacher State Park, we visited the Emma Treadwell Thacher Nature Center. There are a number of trails there with some wildflowers.
This image of a New England Aster, Symphyotrichum novae-anglia, was captured with backlighting and a view upward to give it a dramatic flare.
The NE Aster is a hardy perennial native to this area; blooms August to October and attracts bees and butterflies (although neither where there at the moment I was).