Shrub to 1.5-2 m tall. Stem glabrescent. Petiole 1-3.2 cm long, vaginate to apex, glabrescent; blade not scabrous, densely glandular-dotted, elliptic to ovate, 14-28 x 7-14 cm, apex acuminate, base equal or unequally attached to petiole difference 0.2 cm, (acute to) rounded, glabrous above except minutely crisp-pubescent veins, glabrescent below; pinnately veined, secondary veins 5-7 per side, originating from lower 2/3 of primary vein, slightly impressed above, prominulous below, tertiary veins more or less parallel. Inflorescence erect; peduncle to 1.5 cm long, glabrous; spike to 6 cm long, apiculate; floral bracts glabrous to papillate. Infructescence to 0.5 cm thick; fruits depressed globose or subtetragonous, 1.2 mm in diam., glabrous, glandular, stigmas 3, sessile.