also: はか
noun
General term for mint plants, including peppermint and spearmint. Often used in compounds like ハッカ油 (peppermint oil) or ハッカ飴 (mint candy).
ハッカの香りが爽やかですね。
The scent of mint is refreshing, isn't it?
ハッカ油を数滴たらすと、部屋がすっきりします。
Adding a few drops of peppermint oil makes the room feel fresh.
noun
Japanese peppermint; Mentha arvensis var. piperascens
Specifically refers to the Japanese peppermint variety, a source of menthol. Often encountered in botanical or traditional medicine contexts.
日本薄荷はメントールの原料として栽培されています。
Japanese peppermint is cultivated as a source of menthol.