Translation guide
Water pepper refers to a plant (Persicaria hydropiper) known for its peppery, pungent taste. In Japanese, it is primarily known as ヤナギタデ, but other related species and names exist.
The most common and direct equivalent for the plant water pepper.
The standard Japanese name for water pepper (Persicaria hydropiper). Often written in katakana, but can also be written as 柳蓼.
When referring to water pepper in a broader sense or to similar plants.
Another species of smartweed (Persicaria pubescens) sometimes confused with water pepper. Less common.
ボントクタデもタデ科の植物です。
Bontokutade is also a plant of the smartweed family.
ヤナギタデは湿地に生える植物です。
Water pepper is a plant that grows in wetlands.
A broader term for smartweed/knotweed, which includes water pepper. Can be used when the specific species is clear from context.
このタデは辛味があります。
This smartweed has a pungent taste.