Bloodroot (Sanguinaria canadensis) is a showing spring wildflower with white flowers with a yellow center. It also has large, lobed inward curved leaves when the flower is in bloom, but these flatten out with age. I have found bloodroot easy to grow in my backyard, and it has graced me with its early white blooms before most of the other spring flowers in my garden.
Above: Video showing Bloodroot flowers, leaves, habitat and roots.
Bloodroot gets its name for the color of the sap in its thick roots. When cut the already red roots, leak nearly blood red sap. This similarity to the color of blood, drew Native Americans and early settlers to use it to treat a variety of ailments especially rheumatism. However, the juice is said to be highly toxic The red sap also a useful stain and was used to dye baskets and fabric.