Cute lil weeds?
These little guys are about 3inches tall and have popped up around my hens & chicks. I actually think they look pretty cool and haven't pulled them out yet. The leaves are less than an inch long and are thick and juicy but haven't got much of a smell.
Midland County Michigan
It looks like Portulaca or Moss Rose or Sun Plant or Rose Moss... Portulaca grandiflora. These are probably seeds from plants that were there in a previous year. They will bloom. It is considered a succulent and is an annual flower.