| Family | Orchidaceae |
| Subfamily | Epidendroideae |
| Tribe | Cymbidieae |
| Subtribe | Eulophiinae |
| Scientific name | Geodorum densiflorum (Lamarck) Schlechter |
| Synonyms | Arethusa glutinosa Blanco; Cistella cernua (Willdenow) Blume; Cymbidium pictum R. Brown; Dendrobium haenkeanum Steudel; Dendrobium nutans C. Presl; Geodorum dilatatum R. Brown; Geodorum formosanum Rolfe ex Hemsley; Geodorum fucatum Lindley; Geodorum neocaledonicum Kränzlin; Geodorum nutans (C. Presl) Ames; Geodorum pacificum Rolfe; Geodorum pictum (R. Brown) Lindley; Geodorum purpureum Ridley, non R. Brown; Geodorum rariflorum Lindley; Geodorum semicristatum Lindley; Geodorum tricarinatum Schlechter; Limodorum densiflorum Lamarck; Limodorum nutans Roxburgh; Malaxis cernua Willdenow; Ortmannia cernua (Willdenow) Opiz; Otandra cernua (Willdenow) Salisbury; Tropidia grandis Hance |
| Common name | (Japanese common name) tosaka meoto-ran (トサカメオトラン, 鶏冠夫婦蘭 [meaning: cockscomb like marital orchid]) |
| (English common name) nodding swamp orchid | |
| Distribution | (Japan) Okinawa |
| (Other nations) China, Taiwan, Philippines, Thailand, Malaysia, Indonesia, Papua and New Guinea, Australia, Nepal, India | |
| Chromosomal number | 2n=52 |
| Description | Leaves 20-50cm long. Scapes ca. 50cm tall. Flowers white, pink, red or pale purple (mainly white in Japan) petals ca. 1cm, flowering in May to August. Terrestrial. Perennial plants. |
| Reference | Geodorum densiflorum (Lam.) Schltr. |
| Geodorum densiflorum (Lam.) Schltr. 1919 | |
| Geodorum densiflorum | |
| Geodorum densiflorum | |
| Note | Rare species. |
| September 2007 Tsukuba Botanical Garden |
September 2007 Tsukuba Botanical Garden |
September 2007 Tsukuba Botanical Garden |