Slender glabrous tuberous twiner with glabrous or pilose stems, glabrous or sparsely pilose leaves to 70mm x 32mm, 2 to many flowered glabrous lateral racemes or umbels with bracts 1mm long, with mushroom-like odour, flowers to 40mm long, whitish-green, yellowish, orange to red-brown, striped red-brown, outside glabrous, inside purple-hairy, yellow or green yellow tipped brown, red or green lobes to 6mm long, fused at tips, glabrous or puberulous sepals 3mm long, corolla slightly curved glabrous outside hairy inside white at base, spotted purple-brown in upper part, 28mm long x 2.5mm to 9mm diameter at mouth, long hairs inside, corolla tube 15mm long & inflated, to 4mm diameter at base glabrous within, corolla lobes 14mm long joined at tips pilose with long hairs inside, outer coronal lobes blackish-purple 1mm long with some hairs inside with 10 teeth 12mm long, glabrous inner coronal lobes blackish-purple 2.5mm long with recurved tips, glabrous follicles 150mm x 3mm