Refers to the plant Foeniculum vulgare, used as a herb and vegetable.
Fennel seeds are used as a spice.
このサラダにはウイキョウが入っている。
This salad contains fennel.
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Katakana spelling is common for this plant name; usually written in kana.
Kanji spelling; rarely used in modern Japanese.
Hiragana spelling, also used.
The Japanese name ういきょう is derived from the Chinese name for fennel. The exact historical derivation is uncertain.