Liana to at least 50m or lianescent shrub, tomentellous hollow branches & branchlets. Leaves to 350mm x 210mm. Many-flowered inflorescence with bracts & bracteoles to 5mm long, sepals to 3mm x 1.5mm, tomentellous outside & glabrous or puberulous within. White bilobed petals 2.5mm x 1.5mm mostly glabrous. Velvety, longitudinally ridged fruit to 35mm x 35mm