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Lip ascending along the face of the column and adnate to it between the stigmatic lobes and rostellum arms, narrowed into a claw below, dilated into a reflexed transversely lunate or 2-lobed limb above, limb more rarely oblong or lanceolate; produced above the junction with the column into a large reflexed or erect variously-shaped fleshy appendage.
Petals obliquely falcate, curved and united with the margins of the dorsal sepal to form a hood, usually somewhat contracted in front, concave or obliquely saccate at the base.
Stem erect, leafy; leaves radical and cauline, linear or oblong, suberect or sometimes spreading, flat or sometimes crisped.
Inflorescence terminal, many-flowered, often densely spicate; bracts lanceolate, shorter or longer than the flowers.
Lateral sepals usually united, narrowed at the base and connate into a concave limb.
Terrestrial herb with undivided sometimes stalked tubers.
Flowers small to medium-sized, subglobose.
Dorsal sepal erect, narrow, concave.
