Wood Sorrel

Oxy jack,It is Emma!
Well this is around every where. i hope that it is not on the rolling hills where the cattle feed . They could get oxalate poisoning!
it is not in my yard ,but extremely common on side walks .

http://en.m.wikipedia.org/wiki/Oxalis_pe...

Karen, I hope this isn't growing in your garden, it's a pernicious weed and is nearly impossible to eradicate. I've been battling it for years, and still no sign of winning. Each plant produces multiple bulblets that are attached to the roots. When you pull the weed, they detach from the roots and remain in the soil. Each bulblet will grow into another plant. If you don't dig them up completely, they keep coming back. If you do nothing they keep reproducing until the yard is nothing but yellow oxalis. Nothing eats it. =(