Yawning Leek Orchid

Prasophyllum hians is a terrestrial, perennial, deciduous, herb with an underground tuber and a single smooth green, tube-shaped leaf 150–300 mm (6–10 in) long and 2–4 mm (0.08–0.2 in) in diameter. Between twenty and fifty or more flowers are arranged on a flowering stem 150–300 mm (6–10 in) tall. The flowers are pink and fawn, about 8 mm (0.3 in) long and wide. As with others in the genus, the flowers are inverted so that the labellum is above the column rather than below it. The lateral sepals are joined to each other and the petals face forwards. The labellum is white, turns upwards through about 90° and has a frilly edge. Flowering occurs from September to November.

Yawning leek orchid grows in a range of habitats from wet areas to forest between Dongara and Israelite Bay in the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren biogeographic regions.