Liana with glabrate branches. 2-3 pinnate leaves, terminal pinna often modified into a tendril, each pinna imparipinnate with 12-3 sets of segments, glabrate ultimate segments to 220mm x 110mm. Axillary racemes to 150mm long with glabrate triangular bracts to 6mm x 2mm & glabrate bracteoles to 11mm x 5mm. Yellow flowers, calyx to 8mm x 6mm, glabrate outside & pubescent inside, yellow corolla to 55mm x 3mm, corolla lobes to 12mm x 12mm.