Free high resolution photo of toothed spurge (Euphorbia dentata, or Poinsettia dentata.) Toothed spurge is a noxious weed found mostly in the Great plains of the United States. It has long serrated palmate leaves – meaning the leaves radiate from a single point – in this case, the center. It can grow to be several feet tall and has a milky white sap which can cause blisters to the skin. This picture is free for any use.