Epipactis thunbergii (Thunberg's helleborine, kaki-ran)

Thunberg's helleborine is a perennial that grows wild in moist places such as sunny wetlands and along the mountain streams.

In Japan, it is called kaki-ran, a name derived from its yellow-brown flowers which are similar in color to persimmons.

Although its stems die back to the ground, its rhizomes overwinter in the soil and produce new buds in early spring.