Prasophyllum striatum
Prasophyllum striatum, commonly known as streaked leek orchid, is a species of orchid endemic to New South Wales. It has a single thin, tube-shaped leaf and up to ten greenish and whitish flowers with reddish or purplish stripes. It differs from other leek orchids in having a very thin leaf and prominently streaked flowers.
Description
Prasophyllum striatum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped leaf long and about in diameter. The free part of the leaf is long. Up to ten flowers are arranged on a flowering spike high. The flowers are long and wide on a short, thin ovary, and as with other leek orchids, are inverted so that the labellum is above the column rather than below it. The dorsal sepal is triangular, greenish with reddish or purplish stripes and is long and about wide. The lateral sepals are a similar size and colour to the dorsal sepal, fused to each other and curve backwards. The petals are whitish with reddish or purplish stripes and are about long and wide. The labellum is white, about long and wide. It curves gently upwards and has wavy edges. There is a raised, creamy-white callus with two parallel ridges in the centre of the labellum and extending almost to its tip. Flowering occurs from March to June.Taxonomy and naming
Prasophyllum striatum was first formally described in 1810 by Robert Brown and the description was published in Prodromus Florae Novae Hollandiae et Insulae Van Diemen. The specific epithet is a Latin word meaning "furrowed", "channelled" or "striped".In 2004 David Jones and Mark Clements proposed changing the name to Mecopodum striatum but the name has not been accepted by the World Checklist of Selected Plant Families.