Sepals and petals of similar length; sepals free; petals very oblique, attached to the column along the lower part of their dorsal margin.
Column erect, slender; anther loculi parallel; pollinia granular, caudicles short, viscidia rather large, naked.
Slender terrestrial herb; stem erect, leafy, from small ovoid, ellipsoid or fusiform tubers.
Lip entire or 3-lobed, neither saccate nor spurred, but with a callus towards the base.
Leaves lanceolate or linear, 1 or 2 basal, the rest spaced out along the stem.
Stigma cushion-like, 2-lobed; rostellum mid-lobe small, erect, cucullate.
Inflorescences spicate;flowers laxly arranged, ± sessile.