Glabrous liana, shrub or tree with young branchlets ferrugineous-sericeous, lenticellate branches. Glabrate leaves to 180mm x 130mm. Axillary & terminal panicles with bracts to 6mm long of up to 6 flowers, 30mm diameter bright yellow flowers with bracts & bractlets 1mm long, flowers 15mm wide, sepals 3mm long, petals 5.5mm long with 3.5mm claw. Winged fruit pale green to golden brown.