Tacca borneensis is a plant in the Dioscoreaceae family, native to west Borneo.

Petals ovate acute mucronate, ¼ inch long.

Stamens, with very short but distinct filament, anthers ovate base retuse, stigma, too-much crushed.

The broad ovate leaves of this plant would be quite sufficient to distinguish it from T. cristata.

The involucral bracts too are very distinct, the outer ones broadly ovate, the inner ones narrowed slightly at the base, and all minutely and scantily pubescent.