About Prasophyllum elatum R.Br.
Prasophyllum elatum R.Br., commonly known as the tall leek orchid, is a tuberous perennial herb. It reaches a height of 0.3 to 1.2 meters, and sometimes grows as tall as 1.50 meters. This species produces a single leaf that can grow up to 120 centimeters long. It bears a crowded flower spike that often holds up to 60 flowers. The flowers range in color from pale yellowish-green to brownish or purplish black, have a faint fragrance, and the sepal at the back of the flower grows up to 11 millimeters long. Flowering occurs between August and October. The tall leek orchid is common and widespread across every Australian state. In New South Wales, it grows in coastal heath, scrub, and forest, and inland it occurs in sandy mallee, heath, and on rock outcrops. In Western Australia, it grows in sand, gravel, and laterite in winter-wet depressions. In Victoria, it is found in moist to well-drained soil in heathy woodlands and open forest, growing in full sun or semi-shade, and it flowers better after fire.