Caladenia brunonis

Description

Caladenia brunonis is a terrestrial, perennial, deciduous, sympodial herb with a few inconspicuous, fine roots and a tuber partly surrounded by a fibrous, multi-layered protective sheath. It has a single flattened, dark green, hairy leaf, 20–80 mm (0.8–3 in) long and about 7 mm (0.3 in) wide with a reddish-purple underside. Up to three glossy purple flowers 20–30 mm (0.8–1 in) long and 10–30 mm (0.4–1 in) wide are borne on a spike 150–300 mm (6–10 in) tall. The sepals and petals spread apart from each other, have blackish tips and are blotched with red or purple on their backs. The dorsal sepal is erect, 16–20 mm (0.6–0.8 in) long and 6–8 mm (0.2–0.3 in) wide. The lateral sepals and petals are 14–18 mm (0.6–0.7 in) long and 6–8 mm (0.2–0.3 in) wide. The labellum is about 5 mm (0.2 in) long, 0.5 mm (0.02 in) wide and whitish with the tip curved upward. At the base of the labellum there are two erect, fleshy calli about 4 mm (0.2 in) high with yellow bases and black or dark purple tips. Flowering occurs from August to early November.