About Cyrtostylis reniformis R.Br.
Cyrtostylis reniformis R.Br., commonly known as the common gnat-orchid, is a terrestrial, perennial, deciduous herb. It produces a single kidney-shaped, heart-shaped, or almost round leaf that measures 15–40 mm (0.6–2 in) long and 10–30 mm (0.4–1 in) wide. Up to eight flowers, most often dark reddish brown and rarely yellowish, grow on a flowering stem 50–150 mm (2–6 in) high. Each individual flower is 11–14 mm (0.4–0.6 in) long. The dorsal sepal is erect, curves forward, and is shaped from linear to lance-shaped; it measures 11.5–13 mm (0.5–0.5 in) long and about 2 mm (0.08 in) wide. The lateral sepals are linear, 10–11 mm (0.4–0.4 in) long, about 1 mm (0.04 in) wide, and curve either forwards or downwards. The petals match the lateral sepals in size and shape, and curve downwards. The labellum is oblong, 10–12.5 mm (0.4–0.5 in) long and about 5 mm (0.20 in) wide. It is shelf-like, with a few serrations near its pointed tip. Flowering occurs from May to October. This orchid is widespread and locally common across all Australian states and the Australian Capital Territory, with the exception of Western Australia, where it does not occur.
