what is this plant
I believe that you are looking at a leaf from a type of variegated mallow (malva in Sunset). I had one in my yard that the deer really loved this year! If you go to this link: http://www.mooseyscountrygarden.com/flowering-annuals/variegated-mallow.html and scroll down, you'll see several pictures that should match. I'm not sure, but it may be a biennial. Usually small purple flowers.