| Family | Orchidaceae |
| Subfamily | Orchidoideae |
| Tribe | Orchideae |
| Subtribe | Orchidinae |
| Scientific name | Platanthera japonica (Thunberg) Lindley |
| Synonyms | Habenaria japonica (Thunberg) A.Gray; Orchis japonica Thunberg; Platanthera manubriata Kränzlin ex Diels |
| Common name | (Japanese common name) ture-sagi-sou (ツレサギソウ, 連鷺草 [meaning: herons weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) China | |
| Habitat | Mountane field, wet forest |
| Chromosomal number | unknown |
| Description | Plants 40-60cm tall. Leaves alternate 2-5, 10-20cm long, 4-7cm wide. Flowers inflorescences 10-20cm long, white side sepals ca. 8mm long, lip 13-15mm long, spurs 3-4cm long. Terrestrial. Perennial plants. |
| Reference | Platanthera japonica (Thunb. ex A. Murray) Lindl. |
| Platanthera japonica (Thunb. ex A. Murray) Lindl. 1835 | |
| The floral morphology and ontogeny of some Chinese representatives of orchid subtribe Orchidinae China |
| mid May 2009 at my home |
mid May 2009 at my home |
mid May 2009 at my home |
| mid May 2009 at my home |
| mid May 2009 at my home |
mid May 2009 at my home |
| mid April 2009 at my home |
late April 2009 at my home |
early May 2009 at my home |