| Family | Orchidaceae |
| Subamily | Epidendroideae |
| Tribe | Calypsoeae |
| Scientific name | Ephippianthus schmidtii Reichenbach f. |
| Synonyms | Ephippianthus sachalinensis Reichenbach f. |
| Common name | (Japanese common name) ko-ichiyou-ran (コイチヨウラン, 小一葉蘭 [meaning: small single leaf orchid]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu (north of Kinki region), Shikoku |
| (Other nations) Russia (Far East) | |
| Habitat | Subalpine needleleaf tree forest |
| Chromosomal number | unknown |
| Description | Leaves single 1.5-4cm long, 1-2.5cm wide, petioles ca. 1-2cm long. Scapes electing 10-20cm tall. Flowers 2-7 at top, pale green calyx lobes 5-6mm long, 1.5-2mm wide, petals shorter than calyx lobes, marginal round, flowering in July to August. Terrestrial. Perennial plants. |
| Reference | Ephippianthus schmidtii Rchb. f. |
| Note | Rare species. |
| Ephippianthus sawadanus (F. Maekawa) Ohwi (syn. Hakoneaste sawadana F. Maekawa) is a similar species and occurs in Honshu (Hakone, Mt. Fuji, Chichibu region, Kii Peninslar). marginal of labium has tiny tooth, purple soptted in center. |
| July 2009 at Mt. Fuji |
July 2009 at Mt. Fuji |
| July 2009 at Mt. Fuji |
July 2009 at Mt. Fuji |
| Photo by Madame Popow | Photo by Madame Popow |
| August 2008 at mountane forest |
August 2008 at mountane forest |