Leaf shoots many-bladed. Inflorescence borne separately from leaves on long or short peduncles, surrounded by sterile bracts; fertile bracts free, each subtending a single flower; bracteoles tubular. Corolla tube often long and slender; lobes usually ±equal. Labellum 3-lobed or (not in Australia) entire, lower part joined to filament and forming a conspicuous tube above insertion of petals; free part of labellum with an elongated mid-lobe. Lateral staminodes absent. Filament with very short free part; anther crested or not. Ovary trilocular. Fruit ?indehiscent.