Iris Parida - Irisparida

Japanese: イリス・パリダ - いりすぱりだ

...There are a huge number of varieties, with more than 300 being produced each year. German iris is a complex hybrid of I. pallida Lam. and I. variegata L. with tetraploid species from the Mediterranean coast, and the basic varieties were created in the early 1900s, and have since been remarkably improved in America. I. germanica L. (English name German iris), which is a slightly shorter plant and is the basis for the name German iris, is also a hybrid of unknown origin. ...

From [Iris]

...It blooms from late April, and is said to have been named Ichi-hatsu because it blooms early. White flowers and variegated leaves can also be seen, and there are varieties that bloom as many as seven flowers, as well as hybrids with Iris pallida Lam. In the past, it was also planted on thatched roofs to protect against strong winds.

*Some of the terminology explanations that mention "Iris Pallida" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…品種は膨大で毎年300以上が作出されている。ジャーマン･アイリスはイリス･パリダI.pallida Lam.とイリス･ウァリエガタI.variegata L.の交雑種に地中海沿岸産の四倍体の種が複雑に交雑され，1900年代初期に基礎の品種が作られ，以後アメリカで目覚ましく改良されたものである。丈がやや低く，ジャーマン･アイリスの名のもととなったドイツアヤメI.germanica L.(英名German iris)も起源不明の雑種である。…