| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Nepetoideae |
| Tribe | Mentheae |
| Scientific name | Mentha spicata L. |
| Synonyms | Mentha aquatica L. var. crispa (L.) Bentham; Mentha cordifolia auct., non Lejeune & Courtois; Mentha cordifolia Opiz ex Fresen; Mentha crispa L.; Mentha longifolia auct. non (L.) Hudsson; Mentha longifolia (L.) Hudson var. mollissima (Borkhausen) Rouy; Mentha longifolia (L.) Hudson var. undulata (Willdenow) Fiori; Mentha microphylla K. Koch; Mentha piperita L. var. crispa (L.) K. Koch; Mentha spicata L. subsp. condensata (Briquet) Greuter & Burdet; Mentha spicata L. subsp. tomentosa (Briquet) Harley; Mentha spicata L. var. ciliata Druce; Mentha spicata L. var. crispa (Bentham) Danert; Mentha spicata L. var. longifolia L.; Mentha spicata L. var. spicata L.; Mentha spicata L. var. viridis L.; Mentha sylvestris L.; Mentha sylvestris L. var. crispa (L.) Alefeld; Mentha sylvestris L. var. glabra K. Koch; Mentha sylvestris L. var. viridis Alefeld; Mentha tomentosa d'Urville, non Smith; Mentha tomentosa d'Urville subsp. condensata Briquet; Mentha tomentosa d'Urville subsp. tomentosa Briquet; Mentha viridis (L.) L.; Mentha viridis (L.) L. var. crispa Bentham |
| Common name | (Japanese common name) midori-hakka (ミドリハッカ, 緑薄荷 [meaning: green mint]), oranda-hakka (オランダハッカ, 阿蘭陀薄荷 [meaning: Dutch mint]), spearmint (スペアミント) |
| (English common name) spearmint | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) [native] Israel, Lebanon, Syria, Turkey, Cyprus, Albania, Bulgaria, Greece, Italy, Egypt | |
| Habitat | Swamp, wet field |
| Chromosomal number | 2n=24, 48 |
| Description | Plants 50-80cm tall. Leaves 3-7cm long, 1-2cm wide. Flowers white or pale purple corollas 4mm long, flowering in July to September. Perennial plants. |
| Reference | Mentha spicata L. |
| Mentha spicata L. | |
| Mentha spicata Linnaeus | |
| Mentha spicata L. | |
| Genome analysis of Mentha spicata L. (Genome analysis in the genus Mentha, Part 2) | |
| DNA encoding limonene synthase from Mentha spicata (United States Patent 5871988) | |
| Note | Naturalized plants (introduced in 1820). |
| September 2007 at lakeside |
September 2007 at lakeside |
September 2007 at lakeside |
| September 2007 at lakeside |