| Family | Orchidaceae |
| Subfamily | Epidendroideae |
| Tribe | Vandeae |
| Subtribe | Aeridinae |
| Scientific name | Arachnis longisepala (J. J. Wood) P. S. Shim, Soón & A. Lamb |
| Synonyms | Arachnis calcarata Holttum subsp. longisepala J. J. Wood |
| Distribution | Kalimantan |
| Reference | Arachnis longisepala (J.J.Wood) Shim, Soón & A.L.Lamb 1982 |
| February 2009 at Tsukuba Botanical Garden |
February 2009 at Tsukuba Botanical Garden |
February 2009 at Tsukuba Botanical Garden |