Where is wasabi found?

Wasabi is primarily found in Japan, where it grows naturally along the cold, clear streams of mountainous regions. It can also be cultivated in other parts of the world, including the United States and New Zealand, under specific conditions that mimic its native environment. True wasabi (Wasabia japonica) is often confused with horseradish, which is commonly used as a substitute due to its similar flavor profile. However, true wasabi has a more delicate taste and is generally more expensive and harder to find.