Pterostylis revoluta R. Br 1810 SECTION Diplodium Photo by John Varigos and His Orchid webpage

Another Flower

Side View Of Flowers Photos courtesy of Colin Rowan


Common Name The Backbent Pterostylis - In Australia The Large Autumn Greenhood

Flower Size 1 3/4" [4.5 cm]

Widespread across Queensland, New South Wales and Victoria, Australia on slopes and ridges in drier open forest and woodland, often in shallow stony soils at lower elevations as a small sized, cool to cold growing terrestrial orchid with a basal, rosette of grey-green to bluish, flat leaves that blooms in the Australian summer and fall with an erect, 4 to 6" [10 to 15 cm] long, single flowered inflorescence.

Synonyms Arethusa tetrapetala R.Br. ex Britten 1909; Diplodium revolutum ( R.Br. ) D.L.Jones & M.A.Clem. 2002; Pterostylis speciosa T.E.Hunt 1958

References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 26 No 10 1957; AOS Bulletin Vol 38 No 6 1969; Native Orchids of Australia Jones 2006 as Diplodium revolutum photo good