Terrestrial. Inflorescence erect, 8-30 cm long, ± densely covered throughout (including the calyx and at least the spur of the corolla) with short to long septate hairs; Ovary ovoid, style short but distinct, stigma lower lip orbicular, upper lip much smaller, deltoid. Capsule oblong-ovoid to globose, 1.5-2.5 mm long, firm in texture, opaque, dehiscing by a longitudinal ventral marginally thickened slit. Seeds few, ± globose, c. 0.25 mm long, testa smooth, reticulate, reticulations relatively large, slightly elongate.
Asia-Tropical: Borneo present; India present; Thailand (Thailand present), Bako National Park present
India, Indo-China, Thailand and Malesia: Borneo (Bako National Park).
Very similar to U. minutissima (with which it sometimes occurs) but distinguished by its larger size, larger flowers and hairy calyx.