Woody lianas; annual growth felty tomentose with gray-yellow hairs. Petioles 1-1.5 cm, tomentose; leaf blade ovate to ovate-lanceolate, 7-13 × 3.5-6 cm, subleathery, abaxially densely felty tomentose, adaxially deep green, sparsely pubescent, base rounded or subcordate, apex caudate-acuminate; lateral veins 4 or 5 pairs, reticulate veins obscure. Cymose panicles axillary, ca. (5-)11 cm; bracts linear, 6-8 mm, densely tomentose; pedicels ca. 10 mm; bracteoles linear. Flowers crowded atop branchlets. Sepals ovate, ca. 1.5 mm, densely gray-yellow tomentose. Petals oblong-obovate, 5-6 × ca. 3 mm, glabrous. Stamen filaments ca. 1.5 mm; anthers oblong. Ovary pubescent; styles 3, 3-3.5 mm, free. Samara suborbicular, 2.5-4 × 2-3.5 cm, subleathery, apex of lateral wings retuse, abaxial wing ca. 12 × 5 mm. Seed lanceolate, villous. Persistent disk yellow-brown, shallowly 3-lobed, lobes deltoid, ca. 1 mm; carpel stalk conic, ca. 1.5 mm. Fl. Jul-Aug, fr. Oct-Dec.
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