Oh !!! Thank you so very much. I'm an old fart man and wanted to know this before I die. I have cancer, diabetes, heart problems, to mention just a few. Again thank you. You made my day.
That would be spotted spurge, purslane, and creeping wood sorrel or oxalis
Article link is below.
Can you give us more info?
Three most pesty weeds in SJ Valley article in Fresno Bee on either May 10 or 17, 2014