Twining or decumbent herb to 500mm with urticant hairs. Scabrid stems. Pinnatisect or bipinnatisect leaves to 110mm x 55mm with irregularly dentate margins. 5-parted flowers, sepals to 5mm x 2mm, yellow or rarely cream petals to 12mm x 8mm. Glabrescent capsule to 25mm x 10mm.