Herbs, perennial, terrestrial or epipetric, rhizomatous, stemless. Leaves few to many, basal; leaf blade pubescent to hispid, base rounded to cordate. Inflorescences lax, axillary, few- to many-flowered cymes; bracts 2, opposite. Calyx actinomorphic, 5-sect from base; segments equal. Corolla purple, zygomorphic, inside strigose or puberulent; tube cylindric, not swollen, much longer than limb, 3-4 mm in diam.; limb 2-lipped; adaxial lip 2-lobed, ca. 2 X shorter than abaxial lip; abaxial lip 3-lobed, lobes subequal, apex acute. Stamens 2, adnate to above middle of abaxial side of corolla tube, included; anthers dorsifixed, coherent adaxially, thecae divaricate, confluent at apex, dehiscing longitudinally; connective not projecting; staminodes 3, adnate to adaxial side of corolla tube. Disc cupular or ringlike. Ovary linear, 1-loculed; placentas 2, parietal, projecting slightly inward, 2-cleft. Stigmas 2, equal, oblate, undivided. Capsule straight in relation to pedicel, linear, much surpassing calyx, dehiscing loculicidally to base; valves 4, straight, not twisted. Seeds unknown.

* Two species: endemic to China.