This started growing in my weed patch this spring. Is it a kind of wild rose? There used to be a wild rose bush next door that overhung my fence, but they cleared their yard this winter. I wondered if this was a descendant. No buds, but it has thorns. Or is it just a mean weed?

Uploaded by metroave on 2009-06-12, 13:31:02 into Name That Plant, Roses I Have Loved