Leaves green on upper surface, chartaceous, ovate to broadly ovate or elliptic, blades 3-8 cm long, 2-4.8 cm wide, upper surface moderately to sparsely appressed pilose, lower surface more densely appressed pilose primarily along veins, margins coarsely crenate to serrate-dentate, the teeth with a blunt glandular apex, apex acute to short-acuminate or rarely obtuse, base cordate to shallowly cordate, petioles 0.5-1.5 cm long, stipules ovate, 2.5-4 mm long, caducous.
Flowers in spicate inflorescences 8-70 mm long, densely rusty short-pilose throughout, on short lateral branches with 1-2 leaves and stiff, revolute tendrils in the lower axils of the flowering branch, bracts ovate, 2.5-3 mm long; sepals ca. 1-1.1 mm long; petals white, ca. 0.7-1 mm long; style deeply 3-lobed.
Fruit ca. 9-10 mm long, 2-3-winged, the wings 2.5-3 mm wide, extending to base, tomentose, tardily separating into 3 mericarps.