In my last post I had a mystery plant which was identified by Tina and Annie as Celandine Poppy, Stylophorum diphyllum . Thanks ladies! This led me on a search for other pictures to compare my plant to and most all of them were of a plant/weed that grows all over here that I had no name for. It's pretty and welcome in the wildflower areas but when it gets into the garden it threatens to take over. There were a few pictures that looked like my mystery plant.
Here's a closer look at both the flowers and the leaves.
After looking up Celandine Poppy and finding links referring to Wood Poppy my brain finally clicked and I do remember picking up a seedling at a plant sale last September. I still don't remember planting it though. Here's a better picture. Both the flower and the leaves do look very similar but slightly different to the flowers I'm used to.
My confusion continued as I continued to find pictures of both plants all labeled with the same name. Then I happened across the Appalachian Cultural Museum site where I found this:
You can often find a similar plant growing along roadsides and other disturbed areas. It was introduced from Europe. This is the Celandine (Chelidonium majus). It differs from the Celandine Poppy in having smaller flowers and smooth fruits which do not retain the styles.
With two plants with virtually the same name it's no wonder they get mixed up!