Scientific name: Houttuynia cordata
Dokudami is native to Japan, China, and Southeast Asia. It flourishes in moist, shady places, but is equally happy along roadsides or invading peoples' gardens. In late spring and early summer it produces cross-shaped white flowers. The leaves have a pungent smell, and its Chinese name actually means "fishy-smelling plant." It is also gathered and dried as a tea herb.