Hairy climber with hairy branchlets and prickles on older stems, leaves to 170mm x 90mm, glabrescent above, hairy beneath. Axillary male panicles, 1.3mm calyx with 3 or 4 segments, yellow flowers, 3 or 4 petals to 2mm hirsute outside, female heads generally from old wood with calyx and petals as in male, bristly fruit to 45mm x 20mm x 15mm with a short beak