Herbs, perennial, terrestrial, rather succulent. Roots few, scattered along slender rootstock producing shoots at wide intervals, slender, fibrous. Stems slender, solitary leaves inserted toward middle. Leaves ascending; blade fleshy-leathery. Inflorescences terminal, solitary flower or 2-flowered racemes; floral bracts foliaceous, prominent. Flowers resupinate, showy; lip bearing prominent adaxial fleshy crests divided into distinct cylindric processes, margins laciniate; pollinia 2, viscidia absent; stigma flat. Fruits capsules.