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| August 2007 at lowland swamp |
August 2007 at lowland swamp |
| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Nepetoideae |
| Tribe | Mentheae |
| Scientific name | Mentha japonica (Miquel) Makino |
| Synonyms | Micromeria japonica Miquel; Satureia japonica (Miquel) Matsumura et Kudô |
| Common name | (Japanese common name) hime-hakka (ヒメハッカ, 姫薄荷 [meaning: dwarf mint]) |
| (English common name) Japanese wild mint | |
| Distribution | (Japan) Hokkaido, Honshu |
| (Other nations) none | |
| Habitat | Swamp |
| Chromosomal number | 2n=72, 96 |
| Description | Plants electing 20-40cm tall. Leaves 1-2cm long, 3-8mm wide. Flowers calyxs 2-2.5mm long, white or pale purple corollas ca. 3.5mm long, 4 stamens, flowering in August to October. Fruits ca. 0.8mm long. Perennial plants. |
| Reference | Mentha japonica (Miq.) Makino |
| Note | Native to Japan. Rare species. |
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| August 2007 at lowland swamp |
August 2007 at lowland swamp |
