Caladenia sigmoidea R.S.Rogers 1938SUBGENUS Jonesiopsis
Lip Detail Photos by © Colin and Mischa Rowan and their Retired Aussies Website
LATE
EARLY 
Common Name The S Shaped Caladenia [refers to the lip shape ending in a club]- The Sigmoid Spider Orchid
Flower Size .8 to 1.2" [2 to 3 cm]
Found in southwestern Western Australia in mallee vegetation, granite outcrops and on sheltered slopes of banded ironstone hills at elevations around 100 to 350 meters as a mini-miniature to miniature sized, cold growing terrestrial with a single, linear, pubescent leaf that blooms in the late winter and early spring on an erect, 2 to 6" [5 to 15 cm] long, 1 to 2 flowered inflorescence.
Synonyms Calonema sigmoideum (R.S.Rogers) Szlach. 2001; Calonemorchis sigmoidea (R.S.Rogers) Szlach. 2001; Jonesiopsis sigmoidea (R.S.Rogers) D.L.Jones & M.A.Clem. 2003
References W3 Tropicos, Kew Monocot list , IPNI ; Orchids of Australia Nicholls 1969 drawing fide; Native Orchids of Australia Jones 2006 as Jonesiopsis sigmoidea photo fide
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