| Family | Orchidaceae | 
| Subfamily | Epidendroideae | 
| Tribe | Neottieae | 
| Subtribe | Limodorinae | 
| Scientific name | Epipactis thunbergii A. Gray forma subconformis Sakata | 
| Synonyms | none | 
| Common name | (Japanese common name) isoma-kaki-ran (イソマカキラン, 磯間柿蘭 [meaning: coastal persimmon orchid]) | 
| (English common name) helleborine | |
| Distribution | (Japan) Kyushu (southern area) | 
| (Other nations) none | |
| Habitat | Wet field, swamp. | 
| Chromosomal number | 2n=40 | 
| Description | Plants electing 30-70cm tall. Leaves 6-13cm long, 3-5cm wide. Flowers yellow, side petal like lip, flowering in May to June. Terrestrial. Perennial plants. | 
| Reference | Epipactis thunbergii A.Gray 1856 | 
| Epipactis thunbergii A. Gray | 
| June 2009 at my home  | 
      June 2009 at my home  |