Diuris curta flowers from August to early October and its labellum at 1012 mm (0.390.47 in) long has three lobes, with the centre lobe being egg-shaped to wedge-shaped, and both side lobes being oblong to egg-shaped.
Flowering occurs from August to early October. The labellum is 1012 mm (0.390.47 in) long and has three lobes. The centre lobe is egg-shaped to wedge-shaped, 711 mm (0.30.4 in) long and 812 mm (0.30.5 in) wide and the side lobes are oblong to egg-shaped, 35 mm (0.10.2 in) long and 23.5 mm (0.080.1 in) wide. 
