Sparsely branching woody vines; stems greenish to pale brownish, terete, scarcely striate, glabrous. Leaves opposite; blades ovate, to 11 cm long and 5 cm wide, the base cuneate to somewhat rounded, parallel to the long basal secondary veins, the margins remotely serrulate to subentire, the apex slightly short-acuminate, the surface usually glabrous, sometimes sparsely pilose below on veins, the venation subpinnate to trinervate, the second pair of secondary veins most prominent; petioles to 2 cm long. Inflorescence pyramidally paniculate with the lowest branches in the axils of normal leaves, the branches densely corymbose with branchlets bearing few heads, glabrous to puberulous, the ultimate branches 0-4 mm long. Heads 9-12 mm high with 8-9 florets; involucral bracts 20-25, imbricate to subimbricate, in 4-5 series, 1-6 mm long and 1.5 mm wide, ovate to oblong-lanceolate with narrowly rounded apex, the innermost bracts acute, coriaceous, the outer surface glabrous; corolla whitish, 5-7 mm long, tubular or with a narrowly funnelform limb, glabrous, the lobes ca. 0.5 mm long, narrowly triangular; style branches slightly broadened distally. Achenes 3-4 mm long with 5-6 narrow ribs, numerous hairs on upper part, glabrous below, the achene base scarcely narrowed with broad carpopodium; pappus of ca. 40 crowded bristles partially in second series, 5-7 mm long, the bases of the bristles with distinct margins and flattened outer surfaces, the tips slightly but distinctly enlarged.
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