Prasophyllum maccannii, commonly known as the inland leek orchid, is a species of orchid endemic to Victoria. It has a single tubular green leaf and up to forty green, greenish-pink or brownish flowers. It is found in the central-west of the state, growing in open forest.
Prasophyllum maccannii is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped leaf up to NaNsigfig=1NaNsigfig=1 long and NaNsigfig=1NaNsigfig=1 wide at the base, but which is withered by flowering time. Between fifteen and forty scented flowers are crowded along a flowering stem NaNsigfig=1NaNsigfig=1 long, reaching to NaNsigfig=1NaNsigfig=1 tall. The flowers are green, greenish-pink or brownish and as with others in the genus, are inverted so that the labellum is above the column rather than below it. The dorsal sepal is egg-shaped to lance-shaped, NaNsigfig=1NaNsigfig=1 long. The lateral sepals are a similar size, linear to lance-shaped and joined to each other, although sometimes only in the lower half. The petals are linear to lance-shaped and NaNsigfig=1NaNsigfig=1 long. The labellum is white, pink or brownish NaNsigfig=1NaNsigfig=1 long and turns upwards through 90° near its middle. The edges of the erect part of the labellum are sometimes slightly wavy and there is a raised, greenish, tapering callus in the centre of the labellum and extending almost to its tip. Flowering occurs in November and December.[1]
Prasophyllum maccannii was first formally described in 2006 by David Jones and Dean Rouse. The description was published in Australian Orchid Research from a specimen collected from near Ponomal.[2] The specific epithet (maccannii) honours the Victorian naturalist Ian Robert McCann (1914-2003).[3]
The inland leek orchid grows in open forest in the central west of Victoria.
Prasophyllum maccannii is listed as Endangered under the Victorian Flora and Fauna Guarantee Act 1988.[4]