Anemone virginiana hails from the central and eastern USA where its known as the Thimble weed. The photograph shows why!
It has small creamy white flowers with a central mound of yellowish stamens on stems 18″ to 24″ tall which rise up from a low mound of mid green foliage. It flowers late April or early May depending on the weather, growing in sun or part shade and will tolerate full shade. This is not a large showy plant but quietly pretty and very useful for providing interest early in the year.