Etymology and distribution of 荏草.

Igusa 【荏草】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Akita-ken Yuzawa-shi . Akita-ken Yokote-shi Origin of Ishinari Hiraga-cho Daigo. A place name with a record since the Edo period.

※ Kyouto-fu Nagaokakyou-shi It was in the Katsutoji Castle of Katsutsuji in the Warring States Period. I pronounced it as "Iwanari" as well as "Iwase". 岩成 Iwanari reference.

* There is a record of the family name of Isemi Yuzuki in 769 (3rd year of Jinuki Jingyun). Location unknown.

Ekusa 【荏草】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Yamagata-ken , Miyagi-ken .

① Origin of Fukushima-ken Onuma County. A place name with a record since the Heian period. Miyagi-ken Katta-gun It is a comparative site of the tribe from Onuma-gun of Miyagi-ken (formerly Rikuzen country) in Higashidagda in Zaou-machi . Niigata-ken Tainai-shi It was in the Edo era in Shibahashi.

② Iwate-ken Ninohe-shi Kaneda Birth of Onuma. It is distributed in the same place.

③ Ibaraki-ken Hitachi-shi Originated in Onuma cho, Higashi Onna-machi. A place name with a record since the Muromachi period. It is distributed in the same place.

④ Gifu-ken Takayama-shi Origin of Onuma Niuikawa Town. A place name with a record since the Edo period. It is distributed in the same place.

⑤ There is a transmission from Tochigi-ken 's Onuma-so. Tochigi-ken Mooka-shi Onuma was a place name with a record since the Edo period.