Tree up to 30 m tall, hemi-epiphytic or (secondarily?) terrestrial, or a climber (?). internal hairs absent. Leaves spirally arranged; stipules (0.5-)1-1.5 cm long, glabrous, caducous. Ovary partly (dark) red.
Asia-Tropical:, Malaya (Peninsular Malaysia ‒ present); Sumatera (Sumatera ‒ present) Northern: present
Malesia: Sumatra, Malay Peninsula, Borneo (northern).
In all specimens examined the ostiole is perforated and it is unclear how many upper ostiolar bracts there are and whether they are imbricate or not.