Vine reaching 30 m in length while climbing among trees; stems with dense brown strigose trichomes. Leaves alternate, 3.7-11.4 cm wide, 6.0-13.0 cm long, palmately lobed, usually with 5-7 lobes, both sides with dense, dark strigose trichomes; petiole to 5 cm long. Inflorescence of numerous heads in axillary panicles. Heads discoid, campanulate, to 5 mm tall; involucre of 2 series of ovate