Woody climber to 10m+, with young branches armed with 1.5mm recurved prickles, glabrous bipinnate leaves, 25-51 pairs, leaflets to 4.5mm x 0.8mm. Axillary or terminal panicles with floral bracts, flowers yellowish-white, glabrous calyx to 2.1mm with teeth to 0.6mm, glabrous corolla to 2.7mm with lobes to 0.8mm, brown pod 120mm x 22mm