Wasabi daikon (horse-radish) - Armoracia rusticana; horse-radish

Japanese: ワサビダイコン(山葵大根) - ワサビダイコン（英語表記）Armoracia rusticana; horse-radish

A perennial plant of the Brassicaceae family. Native to Europe, it is also called horseradish. The basal leaves have long petioles and are large and oblong, similar to those of dock. The stem leaves are lanceolate and serrated. From April to May, the flower stalks grow and produce many small white flowers in clusters. It has large, branched roots underground, which are white and fibrous, have a spicy taste and a unique fragrance, and are used as a spice like wasabi. It is also used as a diuretic.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

アブラナ科の多年草。ヨーロッパ原産で，セイヨウワサビとも呼ばれる。根出葉は長い葉柄があり，ギシギシに似た大型の長楕円形。茎葉は披針形で鋸歯がある。4～5月，花茎を伸ばし多数の白色小花を総状につける。地下に分枝した大きな根があり，白色で繊維が多く，辛みと特有の香気があって，ワサビのように香辛料として用いられる。また，利尿剤としても用いられる。

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