About Genoplesium archeri (Hook.f.) D.L.Jones & M.A.Clem.
Genoplesium archeri (Hook.f.) D.L.Jones & M.A.Clem. is a terrestrial, perennial, deciduous herb that grows from an underground tuber. It produces a single thin leaf 100–150 mm (4–6 in) long, which is fused to the flowering stem, leaving a free section 20–25 mm (0.8–1 in) long. Between two and fifteen yellowish green flowers are crowded along a flowering stem 15–30 mm (0.6–1 in) tall, reaching roughly the same height as the leaf. Individual flowers are about 7 mm (0.3 in) long and 5 mm (0.2 in) wide, and are oriented upside down so that the labellum sits above the column instead of below it. The dorsal sepal is egg-shaped, about 4.5 mm (0.2 in) long and 2.5 mm (0.1 in) wide, with hairless edges, purple stripes and a pointed tip. The lateral sepals are linear to lance-shaped, about 5 mm (0.2 in) long and 1.5 mm (0.06 in) wide, and spread widely apart from one another. The petals are egg-shaped, about 4 mm (0.2 in) long and 1.5 mm (0.06 in) wide, with purple stripes and hairless edges. The labellum is purple, broadly egg-shaped, around 3 mm (0.1 in) long and 2 mm (0.08 in) wide. It has a curled, sharply pointed tip, and coarse hairs up to 1 mm (0.04 in) long line its sides. A narrow egg-shaped callus sits in the centre of the labellum, extending almost to its tip. Flowering occurs between November and March. This species grows in a wide variety of habitats, including swamp margins and open forest. In New South Wales, it occurs mainly between Guyra and the Blue Mountains. It is widespread across Victoria, and grows in Tasmania at altitudes up to 200 m (700 ft) above sea level.
