| Coastal white spider orchid | |
|---|---|
| |
| C. longicauda subsp. calcigena growing in Perth | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Diurideae |
| Genus: | Caladenia |
| Species: | |
| Subspecies: | C. l. subsp. calcigena
|
| Trinomial name | |
| Caladenia longicauda subsp. calcigena | |
| Synonyms[1] | |
|
Arachnorchis longicauda subsp. calcigena (Hopper & A.P.Br.) D.L.Jones & M.A.Clem. | |
Caladenia longicauda subsp. calcigena, commonly known as the coastal white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four mostly white flowers. It grows in coastal sand on the west coast and is distinguished from other subspecies growing in the same area, by its longer sepals and petals, small, narrow labellum and by the arrangement of the calli on its labellum.