Barringtonia sarawakensis grows as a tree up to 30 metres (100 ft) tall, with a trunk diameter of up to 30 centimetres (12 in).

The fruits are green, ovoid to oblong, up to 4 cm (2 in) long.

[3] Barringtonia sarawakensis is endemic to Borneo where it is confined to Sarawak.

Its habitat is hill dipterocarp forest at 400–1,000 m (1,000–3,000 ft) altitude.

[1] Barringtonia sarawakensis has been assessed as endangered on the IUCN Red List.