Diuris amplissima D.L. Jones 1991
Habitat Photo Photo courtesy of Ron Heberle and the Thelymitra Page of The Species Orchid Society of Western Australia
to 
Common Name The Widest Diuris - The Giant Donkey Orchid
Flower Size 1.2 to 1.8" [3 to 4.5 cm]
Found in Western Australia at elevations of 30 to 350 meters as a medium to large sized, cool to cold growing terrestrial with 2 to 3, conduplicate, leaves that blooms in the spring on an erect, 8 to 36" [40 to 90 cm] long, 3 to 7 flowered inflorescence.
References W3 Tropicos, Kew Monocot list , IPNI ; Native Orchids of Australia Jones 2006
