Caladenia rigida

Stiff spider orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species:
C. rigida
Binomial name
Caladenia rigida
Synonyms
  • Arachnorchis rigida (R.S.Rogers) D.L.Jones & M.A.Clem.
  • Caladenia huegelii var. rigida (R.S.Rogers) J.Z.Weber & R.J.Bates
  • Calonema rigida Szlach. orth. var.
  • Calonema rigidum (R.S.Rogers) Szlach.
  • Calonemorchis rigida (R.S.Rogers) Szlach.

Caladenia rigida, commonly known as the stiff spider orchid, or white spider-orchid is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single hairy leaf and one or two white flowers with dark glandular tips on the sepals and fine reddish-brown lines along the sepals and petals.