Japanese wintergreen is a tiny evergreen of East Asian forests. In U.S. woods, a similar native plant is spotted wintergreen (Chimaphila maculata), which is easy to recognize by the pale stripes on its leaves.
Spotted wintergreen has bold pale stripes running along its dark leaves. Japanese wintergreen has plain green leaves; a flowering plant typically has just one or two flowers.
Why they get mixed upBoth are small evergreen relatives with nodding white flowers.