Flowering stem 10–40 cm tall, slender, characteristically bent at apex of leaf-sheath. Leaf erect, 10–25 cm long, almost solid, green; sheath opening close to bottom of inflorescence. Flowers 3–30, green, often with red tints, erect, in moderately loose spike 2–10 cm long; ovary obovoid, 2–3 mm long, sessile; dorsal sepal ovate, 1–2 mm long, obtuse, hooded, gradually narrowing towards base; lateral sepals linear, similar in length to dorsal sepal, somewhat acute, appressed to ovary, concealed below labellum; petals ovate-lanceolate, 1–2 mm long, spreading or recurved below the dorsal sepal. Labellum pendulous, flat, more or less circular, 1–2 mm long, fleshy; margins entire; apex rounded; lamina somewhat concave, often with small pit in centre; calli absent. Column with minute conical fleshy auricles. Flowers Sept.-Dec.
LoM, Wim, GleP, VVP, GipP, GGr, DunT, EGL, WPro. Also WA, SA, Tas. This semi-aquatic species often flowers in shallow water around the margins of swamps. It occurs in south-west Victoria (e.g. Portland, Grampians, Little Desert) and east of Melbourne on French Island, Wonthaggi area (where possibly now extinct) and Wilsons Promontory.