Column erect, the anther loculi divergent, separated by a broad connective; canals hardly developed; pollinaria 2, each with a sectile pollinium, long caudicle and small viscidium.
Stigmatic processes each 2-lobed with one lobe projecting down in front of the lip-base, the other lobe upright in front of the anther connective.
Rostellum 3-lobed, mid-lobe low, rounded or emarginate, adnate to the connective; side lobes spreading, narrowed towards apex.
Terrestrial herb with tuberous roots, leafy stem and terminal inflorescence.
Lip free, 3-lobed (rarely entire), with cylindrical spur.
Flowers green; sepals and petals free.