For some reason I didn't mow this white wildflower, but I could, unless you tell me it is some relatively useful plant. Grows in partial shade. Here are photos:
Excellent plant ID photos.– cskMay 18, 2021 at 16:28
The bulge behind the flower (I forget the technical name) makes it look like some kind of campion. Take a look at Silene latifolia (white campion) here.
bulge = capsule (in techno-speak)? May 18, 2021 at 10:50
I think you are right - it is Silene latifolia. Still, let's wait if somebody has a different answer. May 18, 2021 at 10:52
Definitely agree with this. From the closeup photo of the flower, you can see the deeply notched petals and that little "flower within a flower" formed by the fringe on the petals at the opening of the floral tube.– cskMay 18, 2021 at 16:27