| Family | Orchidaceae |
| Subfamily | Orchidoideae |
| Tribe | Orchideae |
| Scientific name | Ponerorchis chidori (Makino) Ohwi |
| Synonyms | Chusua chidori (Makino) P. F. Hunt; Gymnadenia chidori (Makino) Makino; Habenaria chidori Makino; Orchis chidori (Makino) Schlechter; Orchis rupestris Schlechter var. chidori (Makino) Soo; Ponerorchis chidori (Makino) Ohwi forma albiflora (Sugimoto) F. Maekawa |
| Common name | (Japanese common name) hina-chidori (ヒナチドリ, 雛千鳥 [meaning: small plover bird orchid]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku |
| (Other nations) none | |
| Habitat | Mountane forest. |
| Chromosomal number | 2n=42 |
| Description | Plants 7-15cm tall. Leaves ca. 6-12cm long, ca. 1.2-3.5cm wide, bracts 3-4cm long. Flowers pale purple, sepals ca. 5-6mm long, lip petals ca. 8-10mm long, flowering in July to August. Epiphytic on mossy trunk of old deciduous trees. Perennial plants. |
| Reference | Ponerorchis chidori (Makino) Ohwi |
| Ponerorchis chusua (D. Don) Soó | |
| Note | Rare species. Endemic to Japan. |
| Photos at Mr. Toda's garden below are those of orchids which were cultivated by Mr. Yuichi Toda in his garden. |
| June 2010 at my home |
June 2010 at my home |
| June 2009 at Mr. Toda's garden |
June 2009 at Mr. Toda's garden |