Here's a white rayed common fleabane. Not quite as eye-catching. If you're ever on Vancouver Island, watch for a smoother variety without basal leaves when it flowers. Vancouver is the only place it grows. Being frequent, wide spread, and easily recognized are traits that correlate with medicinal use. And with a name like fleabane, one would expect it's use at least in that regard. But apparently it's common plant hasn't been used for mutch of anything.