Caladenia rhomboidiformis (E. Coleman) M.A. Clem. & Hopper 1989 SUBGENUS Arachnorchis

Lip Detail Photos by Colin & Mischa Rowan and their The Retireed Aussies Website

Another Flower Photo by Ron Heberle and the Thelymitra Page of The Species Orchid Society of Western Australia

Common Name The Diamond Shaped Caladenia - The Diamond Spider Orchid

Flower Size 1.6 to 2.4" [4 to 6 cm]

Found in Western Australia in tall Jarrah forests and she oak thickets at elevations of 5 to 80 meters as a small to medium sized, cold growing terrestrial orchid that blooms in the spring on an erect, 8 to 18" [10 to 45 cm] long, single flowered inflorescence.

Synonyms Arachnorchis rhomboidiformis (E.Coleman) D.L.Jones & M.A.Clem. 2001; *Caladenia dilatata var. rhomboidiformis E. Coleman 1930; Caladenia longiclavata var. rhomboidiformis (E.Coleman) A.S.George 1971; Calonema rhomboidiformis (E. Coleman) Szlach. 2001; Calonemorchis rhomboidiformis (E.Coleman) Szlach. 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Native Orchids of Australia Jones 2006 as Arachnorchis rhomboidiformis photo fide