| White spider orchid | |
|---|---|
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| |
| Caladenia longicauda subsp. longicauda in John Forrest National Park | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Diurideae |
| Genus: | Caladenia |
| Species: | Lindl.
|
| Subspecies: | C. l. subsp. longicauda
|
| Trinomial name | |
| Caladenia longicauda subsp. longicauda | |
Caladenia longicauda subsp. longicauda, commonly known as the 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 with long drooping, thread-like ends on the sepals and petals. It grows in woodland and forest.