Enchanter's Nightshade, Circaea lutetiana (formerly C. quadrisulcata)
Onagraceae or Evening Primrose Family

Plant Low plant, 1 to 2 feet tall. Leaves opposite each other, egg-shaped, pointed, with small teeth, on long stalks. Flowers tiny in short uncrowded clusters. Flowers have 2 white petals, so deeply lobed they appear to be 4. Fruit a tiny, bristly bur. Blooms in summer.

Native wildflower of shady woodlands. In Wildwood, occasional in the forested areas.

The tiny white flowers and bristly burs are distinctive so the plant is easily identified. Dwarf enchanter's nightshade (C. alpina) is a smaller plant with larger leaf teeth that grows in the Appalachians; it has not been reported from the Park.