Caladenia rhomboidiformis (E. Coleman) M.A. Clem. & Hopper 1989 SUBGENUS Calonemorchis Photo courtesy of 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