British common names can be delightful. Over there, this plant is often windmill pink. Here it's just another common immigrant called catchfly. Common catchfly has become a weed in much of the world, but is in significant decline in its native area. In Great Britain it is now a protected species. These flowers are a little smaller than our even more common white and sleepy catchflies or campions, but the plants are similar. Here you may spot these in a field or on a roadside in AL, AZ, CA, CT, DE, FL, GA, IL, LA, MA, ME, MO, MS, NH, OR, PA, RI, SC, TX, VA, WA, WI, BC, NS, or PE. Tyler Co TX, 4/16/22.