Hans Quistorff wrote:
(1) the clover leaves are bruised but not cut by the lawn mower; the cut ones have a jagged brown edge that is narrower.
Hm. Wonder if foot traffic is
enough? All of it I've noticed gets stepped on.
(2) the clover has to be crowded by something that is growing faster and shading or starving it In your case the grass. In my case it was dandelions. In most cases it was the clover that had the stronger root power and stressing the grass.
There IS a lot of crowding going on. I'm avoiding mowing here for several reasons, and it HAS gotten thick in the back... So shaded, competing etc, are all VERY likely.
Thank you! That makes the most sense so far!! That matches what I see.