Prasophyllum wilkinsoniorum

Prasophyllum wilkinsoniorum is a species of orchid endemic to New South Wales. It has a single tubular, bright green leaf and up to forty five scented, dark greenish-brown to brownish-red flowers with a green to pinkish labellum. It grows in grassy places in a restricted area on the Southern Tablelands.

Description
Prasophyllum wilkinsoniorum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single bright green, tube-shaped leaf, 300-400 mm long with a white to reddish base. Between fifteen and forty five flowers are arranged along a flowering spike up to 450 mm high. The flowers are dark greenish-brown to brownish-red and scented. 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 egg-shaped to lance-shaped, 8-11 mm long, about 4 mm wide and turned downwards. The lateral sepals are linear to lance-shaped, 8-11 mm long, about 2 mm wide and the petals are linear to narrow lance-shaped, 8-12 mm long and about 2 mm wide. The labellum is green to pinkish, broadly egg-shaped to lance-shaped, 7-9 mm long, about 5 mm wide and turns sharply upwards with wavy edges. There is a fleshy green to brown callus in the centre of the labellum. Flowering occurs from December to January.

Taxonomy and naming
Prasophyllum wilkinsoniorum was first formally described in 2000 by David Jones from a specimen collected near Tantawangalo and the description was published in The Orchadian.

Distribution and habitat
This leek orchid grows between Cathcart and Tantawangalo, usually in grassy flat areas.