Delicate deciduous tuberous terrestrial orchids forming small groups. Tubers small, globose. Leaf single, broad, green (both sides), margins often lobed, thin-textured, held horizontally above soil surface on a fleshy stalk. Racemes few-flowered; peduncle longer than rachis, fleshy. Flowers tiny, green, on disproportionately long thin ovaries. Sepals and petals free, narrow, of similar size and shape. Labellum attached by base to column base. Labellum lamina porrect, unlobed, broad, with few coarse apical teeth. Callus consists of weak ridge or thickened plate, no basal glands. Column short, winged. Anther with 4 mealy pollinia in 2 pairs attached directly to viscidium.