| Family | Orchidaceae |
| Subfamily | Epidendroideae |
| Tribe | Collabieae |
| Scientific name | Calanthe masuca (D. Don) Lindley |
| Synonyms | Bletia masuca D. Don; Calanthe longicalcarata Hayata ex Yamamoto; Calanthe masuca (D. Don) Lindley forma albiflora (Ida) Nakajima; Calanthe sylvatica auct., non (Thouars) Lindley; Calanthe textorii Miquel; Calanthe textorii Miquel var. longicalcarata (Hayata ex Yamamoto) Garay & H. R. Sweet |
| Common name | (Japanese common name) onaga ebine (オナガエビネ, 尾長海老根 [meaning: long tail ebine (ebine = Calanthe discolor)]) |
| (English common name) none | |
| Distribution | (Japan) Kyushu (Southwestern Islands), Okinawa |
| (Other nations) China, Taiwan | |
| Habitat | Mountane forest |
| Chromosomal number | 2n=40, 60 |
| Description | Leaves 25-30cm long, 7-10cm wide. Scapes electing 40-50cm tall. Flowers pale purple, pink or white (forma albiflora), bracts 1-1.5cm long, pedicels 2-2.5cm long, sepals 1.5-2cm long, lip petals ca. 2cm wide, flowering August to October. Terrestrial. Evergreen. Perennial plants |
| Reference | Calanthe masuca (D. Don) Lindl. |
| Calanthe masuca (D. Don) Lindl. | |
| Calanthe masuca (D. Don) Lindl. 1833 | |
| Calanthe sylvatica (Thouars) Lindl. 1833 | |
| Calanthe sylvatica | |
| Variation of Chromosome numbers and speciation in Orchidaceae | |
| Note | Rare species. |
| October 2010 at my home |
October 2010 at my home |
| October 2008 at Tsukuba Botanical Garden |
| September 2008 at my home |
September 2008 at my home |
September 2008 at my home |