| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Lamioideae |
| Scientific name | Chelonopsis moschata Miquel |
| Synonyms | Chelonopsis moschata Miquel var. jesoensis (Koidzumi) Miyabe et Tatewaki |
| Common name | (Japanese common name) jako-so (ジャコウソウ, 麝香草 [meaning: fragrant weed]) |
| (English common name) Japanese turtlehead | |
| Distribution | (Japan) Hokkaido (Southwestern region), Honshu, Shikoku, Kyushu |
| (Other nations) none | |
| Habitat | Mountane forest edge |
| Chromosomal number | 2n=32 |
| Description | Plants 60-100cm tall. Leaves 10-20cm long, 3-10cm wide. Flowers pale pueple (merely white) corollas 4-5cm long, flowering in September to October. Perennial plants. |
| Reference | Comparative chromosomal characters of three Japanese species in Chelonopsis, Lamiaceae |
| Chelonopsis moschata Miq. | |
| Note | Native to Japan. Relatively rare species. |
| September 2007 at Mt. Tsukuba |
September 2007 at Mt. Tsukuba |
September 2007 at Mt. Tsukuba |
| September 2007 at Mt. Tsukuba |