About Prasophyllum fimbria Rchb.f.
Prasophyllum fimbria is a terrestrial, perennial, deciduous herb with an underground tuber. It produces a single smooth, tube-shaped leaf that is 200–800 mm (8–30 in) long, and 5–10 mm (0.2–0.4 in) in diameter near the base. Seventy or more flowers grow on a 60–200 mm (2–8 in) high flowering spike that ranges in colour from green to almost black. The flowers themselves are greenish-brown, about 18 mm (0.7 in) long, and 9–10 mm (0.35–0.39 in) wide. Like other species in the Prasophyllum genus, the flowers of P. fimbria are inverted: the labellum sits above the column instead of below it, and the dorsal sepal forms the lowest part of the flower. The petals face forwards, while the lateral sepals are erect and joined along their sides. The labellum is white, curves upwards, and has a frilly edge. A frilly, pinkish callus is located in the centre of the labellum. Flowering takes place from June to September, and is more abundant when a wildfire occurred the previous summer. This species, commonly called the fringed leek orchid, grows in a variety of habitats including swamps, heath, and woodland. Its range extends from Kalbarri in the north to Esperance in the east.
