Caladenia thysanochila G.W.Carr

Indig. Flora & Fauna Assoc. Misc. Pap. 1: 16 (1991) APNI

Taxonomic status:Accepted

Occurrence status:Extinct

Establishment means:Native

Threat status:EPBC: endangered (EN); Victoria: extinct (x); listed in Flora and Fauna Guarantee Act 1988

Flowering plant 34 cm tall. Leaf 14 cm long, 9 mm wide. Flower solitary; perianth segments 2.5–3.5 cm long, white with reddish purple tinges, terminated by light purplish brown clubs, clubs on sepals c. 12 mm long, those on petals c. 2 mm long, glands sessile and crowded; lateral sepals and petals spreading, with decurved tips; sepals flattened at base, abruptly tapered to acuminate tails; petals shorter than sepals, flattened at base, tapered to acuminate tails. Labellum curved forward with apex recurved and lateral lobes erect, obscurely 3-lobed, c. 13 mm long and c. 10 mm wide (when flattened), white with pink marginal and lamina calli; margins of lateral lobes with numerous calli, to 2 mm long, decreasing in size towards the apex; lamina calli in 4 or 6 rows, extending onto mid-lobe, narrow, foot-shaped, c. 1.5 mm long at base of lamina, decreasing in size towards apex (measurements derived from the type specimen). Flowers Oct.

Found once only, near Mt Eliza, growing in Eucalyptus viminalis woodland.

Caladenia thysanochila was discovered during a vegetation survey in 1988 and has not been seen since. Only two plants were discovered, one of which became the type specimen. The species is assumed to be extinct.

Source: Entwisle, T.J. (1994). Orchidaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Updated by: Jeff Jeanes, 2015-05-15
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Caladenia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Caladenia thysanochila in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Caladenia thysanochila in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain extinct native

State distribution

Distribution map