Climbing slender rattan to 30m+. Stem sheaths to 15mm diameter, leaves to 750mm long with spines, 4-8 pairs of armed leaflets with black bristles to 3mm long, basal leaflets to 280mm x 45mm, mid-leaflets to 300mm x 55mm, apical leaflets to 140mm x 25mm. Staminate inflorescence to 700mm long with bracts to 2mm x 1mm & bracteoles to 1.2mm wide. Staminate flowers to 4.5mm x 2.5mm, calyx to 3mm x 2.5mm with triangular lobes to 1mm & petals 4mm x 1.5mm. Pistillate inflorescence to 1m long, bracts to 1.5mm x 2mm & bracteoles to 2mm diameter. Beaked fruit 23mm x 13mm, beak 1.5mm x 1.5mm.