Japanese iris

noun2

1. •
   A group of iris flower species native to or cultivated in East Asia, particularly in Japan, Korea, China, Russia, and Mongolia. Scientifically, the three primary species are Iris ensata, Iris laevigata, and Iris sanguinea.

   • Though we have in Europe certain varieties which grow on comparatively dry soil, we never find the Japanese iris represented otherwise than on damp ground. — 1891
2. •
   A fringed iris, of the species Iris japonica, native to China and Japan, not considered a Japanese iris species.