Shrub to 2.5 m tall. Stem glabrous, young ones often reddish. Petiole 0.4-0.8 cm long, glabrous, pubescent when young, vaginate at base; blade shiny dark green above, pale below, densely black glandular-dotted, translucent dotted in vivo, (narrowly) ovate to elliptic-oblong, 8-15 x 3-6 cm, apex acuminate, base equal or almost equally attached to petiole, acute or cuneate or obtusish, occasionally rough above (from scale-like emergent structures), glabrous below; pinnately veined, secondary veins 3-5 per side, anastomosing near margin, originating from lower 3/4 of primary vein, tertiary veins widely reticulate, not conspicuous. Inflorescence pendent; peduncle slender, 0.5-1.8 cm long, glabrous, often reddish or violaceous; spike 1-5 cm long, 10 mm in diam. in vivo, green, yellow to reddish, apiculate; floral bracts densely marginally fringed. Infructescence pendent, green; fruits trigonous or subtetragonous with narrow “collar”, glabrous, green, stigmas 3, sessile.