Epiphytic herbs. Roots basal. Stem elongate, covered in sheathing leaf bases. Leaves terete, aciculate, articulate to sheathing base. Inflorescence axillary, pendent or spreading, racemose, multiflowered; bracts triangular, recurved. Flowers resupinate. Sepals free, subequal, spreading, narrowly elliptic, rounded at apex. Petals broadly obovate-subcircular, rounded at apex. Labellum attached to column base, trilobed, side lobes erect, rounded at tip, midlobe prominent, porrect-deflexed, ovate, callus keeled; spur inflated, with a thickened back wall and horizontal bridge. Column with two cleft pollinia, stipe linear, transparent; rostellum with two, two-pronged arms, the lower pointing downward and almost covering stigma, the upper pointing upward.