Stillingia is a North American plant in the spurge family also known as Queen's Delight, Yaw Root, Silver Leaf, Tooth Leaf and Cockup Hat. While the historical significance of some of these common names eludes modern etymologists, it is known that the plant was frequently used by Native Americans and likely introduced the herb to European settlers.
The dried herb is used to make teas, as well as oil infusions, salves, ointments and creams for topical use.