Large flying duck orchid
Caleana major is a tuberous, perennial herb, usually growing to a height of 20 to 51 cm with a single reddish, narrow lance-shaped leaf, 5 to 13 cm long, 5 to 8 mm wide and often spotted, emerging at its base. Up to five shiny reddish brown flowers, 2 to 2.5 cm long and 5 to 8 mm wide are borne on a thin, wiry flowering stem. The column has broad wings which the dorsal sepal and petals almost touch and the lateral sepals turn back wing-like behind the flower.