The flowers and sepals of the Diuris disposita are the same color.
The sepals are linear to sword-shaped, green and brownish, 1024 mm (0.40.9 in) long, about 2 mm (0.08 in) wide, turned downwards and parallel to, or crossed over each other. It has one or two linear leaves at its base and up to seven yellow flowers with brown markings. 
