Diuris sulphurea R.Br.

An orchid. It grows in the soil and has leaves at the base and an erect flowering stem. The stem is 30-60 cm tall. It grows in colonies that spread by rhizomes. There are 1-3 leaves on a plant. These are narrow and grass like and 20-50 cm long by 4 mm wide. The flowering stems have small leaves along them. The flowers are in a spike with 1-7 flowers. The flowers are 2.3 cm long by 2.5-3 cm wide. They are yellow with brown markings. The tubers are light brown and 5 cm long by 8 mm wide. There are usually 2 tubers on each plant.

Widespread and often abundant, ranging from near-coastal situations to the W slopes of the Dividing Range, semi-arid inland areas and high into the mountains. Often prominent on drier ridges and slopes within sparse forests, but also grows in wetter sites in tall forest, coastal forest, heathland and less commonly in grassland, in a wide range of freely draining soils.

The tubers are eaten.