Caladenia longicauda subsp. rigidula

Rigid white spider orchid
Caladenia longicauda subsp. rigidula growing near Hopetoun
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. rigidula
Trinomial name
Caladenia longicauda subsp. rigidula
Synonyms

Arachnorchis longicauda subsp.rigidula (Hopper & A.P.Br.) D.L.Jones & M.A.Clem.

Caladenia longicauda subsp. rigidula, commonly known as the rigid white spider orchid or island 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 three large, mainly white flowers with relatively short lateral sepals and petals. It is similar to the reclining white spider orchid (C. cruscula) but that species has smaller, cream-coloured flowers.