Leaves large, basal, scattered or distichous, usually distinctly petioled, expanding towards the base to form a sheath, with a strong main vein and numerous finer veins. Inflorescence a spike. Flowers numerous, each in the axil of a bract. Ovary superior, sessile, subglobose or not externally differentiated from style, 3(-4)-celled; Fruit a globose berry, usually 1-seeded;
Asia-Tropical:, Malaya (Peninsular Malaysia ‒ present); Sumatera (Sumatera ‒ present) Eastern Himalayas: present southern China: present
Eastern Himalayas to southern China; in Malesia: Malay Peninsula and Sumatra. The type of T. squalida (the type species) was described, undoubtedly in error, from Amboina. About 25 spp. have been described, but many of these should probably be reduced to synonymy.
The Malesian species have been insufficiently collected for convincing taxonomic judgements to be made.