Family: Orchidaceae (Orchid family).
Native of southern Australia.
Scattered occurrence. It may be locally abundant.
Thelymitras have three sepals and three petals, which look alike, so that the orchid is apparently 6-petalled. Sun Orchids typically only open in sunshine.
Thelymitra from Thelys = female; mitra = hat, referring to the hooded column of some species.
Photos: Smiths Reef.