Spiranthes australis is a terrestrial, perennial, deciduous, herb with between three and ten linear to lance-shaped or spatula-shaped dark green leaves which are 80–180 mm (3–7 in) long and 6–10 mm (0.2–0.4 in) wide.
Between ten and sixty bright pink flowers are crowded and spirally arranged along a flowering spike 250–450 mm (10–20 in) tall.
The flowers are 4–5 mm (0.16–0.20 in) long and 3–4 mm (0.1–0.2 in) wide, ranging from deep pink to pure white.
The dorsal sepal is lance-shaped to egg-shaped, 4–5 mm (0.16–0.20 in) long and 2.5 mm (0.1 in) wide.
The lateral sepals and petals are a similar size to the dorsal sepal but narrower.
The labellum is white, has three obscure lobes and is about 6 mm (0.2 in) long.
The labellum has a grainy texture and its edges are crinkled.
Flowering occurs from October to March or later but the flowers are self-pollinating.
Spiranthes australis is a terrestrial, perennial, deciduous, herb with between three and ten linear to lance-shaped or spatula-shaped dark green leaves which are 80–180 mm (3–7 in) long and 6–10 mm (0.2–0.4 in) wide. Between ten and sixty bright pink flowers are crowded and spirally arranged along a flowering spike 250–450 mm (10–20 in) tall. The flowers are 4–5 mm (0.16–0.20 in) long and 3–4 mm (0.1–0.2 in) wide, ranging from deep pink to pure white. The dorsal sepal is lance-shaped to egg-shaped, 4–5 mm (0.16–0.20 in) long and 2.5 mm (0.1 in) wide. The lateral sepals and petals are a similar size to the dorsal sepal but narrower. The labellum is white, has three obscure lobes and is about 6 mm (0.2 in) long. The labellum has a grainy texture and its edges are crinkled. Flowering occurs from October to March or later but the flowers are self-pollinating.
Spiranthes australis