Terniopsis H. C. Chao.

Herbs, perennial. Roots flattened, branched. Stems arising laterally from root, distichous, simple or shortly branched. Leaves small, elliptic, flattened, sessile, imbricate in 3 ranks, smaller on lateral ranks. Flowers 1 or 2, axillary to basal leaf, sessile, subtended by 2 bracts; bracts unequal, opposite. Tepals 3, membranous, basally connate. Stamens 2 or 3; filaments free; anther basifixed, 4-loculed. Ovary 3-loculed. Stigmas 3. Capsule smooth, 3-valved.

Four species: Cambodia, China, India, Laos, Sri Lanka, Thailand; one species (endemic) in China.