Grated Japanese Yam & Nori-Tama Bowl

It’s a sunny-side up? No, the white part is Japanese yam :)

Japanese yam has some kinds and they are called various name from one region to another.
There are three types mainly, (1) long and thin “Naga-imo”, (2) round like a fist “Tsukune-Imo”, (3) flat and like a ginkgo leaf “Icho-Imo”.  Collectively it is called “Yama-Imo” in the broad sense.

* Beyond them, there is a wild Japanese yam called “Jinenjo” Dioscorea japonica, that is diffrent from (1)(2)(3).

Icho-Imo, Japanese Yam
(This is an Icho-Imo.)
Icho-Imo, Japanese Yam

 

“Yamato-Imo” is very confused word especially.

Such as that (3)Icho-Imo is called “Yamato-Imo” in Kanto region (includes the Greater Tokyo Area) , but in Kansai region (includes Kyoto and Osaka) “Yamato-Imo” means (2) Tsukune-Imo, also called “Yama-no-Imo”.

Not only by region but also by the people, the recognition is different.  It is very complicated.

Grate Icho-Imo, then add dashi broth to taste.

Cooking of Grated Japanese Yam & Nori-Tama Bowl
Cooking of Grated Japanese Yam & Nori-Tama Bowl
Cooking of Grated Japanese Yam & Nori-Tama Bowl
Rice in bowl with Nori, yam and yolk egg topping, dropping soy sauce.
Grated Japanese Yam & Nori-Tama Bowl

・Yama-Imo
is a collectively common name of some kinds of Japanese yama, Dioscorea japonica. 山芋(やまいも) literally “mountain yam”
・Naga-Imo
is a kind of Yama-Imo.  長芋(ながいも) literally “long yam”
・Tsukune-Imo
is a kind of Yama-Imo. 仏掌芋(つくねいも) literally “Buddha’s palm yam”
・Yamato-Imo
is a kind of Yama-Imo.  大和芋(やまといも) literally “Japanese yam”  * Yamato is an ancient name of Japan.