Prasophyllum mimulum

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Prasophyllum mimulum, the highland leek orchid, is a Tasmanian endemic orchid. It is a terrestrial, perennial herb with an underground tuber and a single green, tube-shaped leaf about 15–30 cm long. It bears 3–10 greenish-brown to purplish flowers on a short flowering spike, reaching a total height of 20–35 cm. Flowers are 9–13 mm wide and are inverted, so the white labellum sits above the column. The dorsal sepal is 5–8 × 3–4 mm, the lateral sepals are 5–8 × 1.5 mm, and the petals are purple with white edges, about 5.5–10 × 1.5 mm. The white labellum is 5.5–8.5 × 3–5 mm and turns sharply upwards by more than 90°. There is a yellow-green callus in the center of the labellum. Flowering occurs from January to March. The highland leek orchid grows in subalpine grasslands and moorlands in Tasmania.

It was first described in 2004 by David Jones from near Lake Baillie in the Central Plateau Conservation Area, and the name mimulum means "imitating" or "mimicking," referring to its resemblance to Prasophyllum alpestre.