rhizomatous herbs. Stem erect, reedlike, enclosed by tubular sheaths. Leaves
plicate, base decurrent into an amplexicaul sheath, articulate. Inflorescences
many flowered racemes, arising laterally from nodes, erect or ascending,
pedunculate; sterile bracts amplexicaul; floral bracts caducous, lanceolate.
Flowers small to medium-sized. Sepals and petals similar, free, spreading to
reflexed; lip adnate to column base, 3-lobed. Column stout, winged; anther
terminal, incumbent; rostellum ovate; stigma suborbicular; pollinia 8, in 2
groups of 4, narrowly obovoid, waxy, viscidium globose.