hooded leek orchid

Prasophyllum cucullatum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single smooth green, tube-shaped leaf 100–150 mm (4–6 in) long and 3–6 mm (0.1–0.2 in) in diameter. Between ten and fifty or more flowers are arranged on a flowering spike 50–200 mm (2–8 in) tall. The flowers are purplish-red and white, about 7 mm (0.3 in) long and 6 mm (0.2 in) wide. As with others in the genus, the flowers are inverted so that the labellum is above the column rather than below it. The dorsal sepal is broad and the petals and hood-like lateral sepals face forwards. The labellum is mostly white, has frilly edges and is turned upwards towards the lateral sepals. Flowering occurs from August to October.

The hooded leek orchid grows in shrubland and in shallow soil pockets on granite outcrops. It occurs from Margaret River and Israelite Bay in the Esperance Plains, Jarrah Forest and Warren biogeographic regions.