Branches glabrous, minutely lenticellate. Leaves unifoliolate to 2-jugate, subglabrous; petiolules 4 mm long. Leaflets oblong-ovate (rarely ovate), 12-17 by 5-9 cm (terminal ones up to 20 by 9 cm), stiff-chartaceous, glabrous except for some scattered, short hairs on the lower side near the base; base rounded to cordate, usually distinctly subpeltate; apex tapering acuminate, acumen short, broad, and blunt; nerves 6-8 pairs, patent, curved, not distinctly joined, inconspicuous above; veins transverse to the midrib, dense, parallel, slender, nearly invisible above. Inflorescences interrupted-paniculate, 20-30 cm long, branches shortly and densely ferruginous-tomentose, rather many-flowered. Bracts minute. Sepals oblong-elliptic, c. 3 by 1 mm, acute, keeled towards the base, shortly sparsely tomentose on both sides. Petals oblong-obovate, 4-5 mm long, outside sparsely appressed-pubes-cent, inside densely glandular-tomentose. Stamens connate for 1/3-1/2 mm, all fertile, filaments with some scattered glandular hairs. Fruits (not attached to the specimen) nearly semi-discoid, rather compressed, 1¾ by 1.5 by 1 cm, stipe slender, 3 mm long, beak acute, at 2/3-3/4 of the height, pericarp thin, outside glabrous, striate and slightly granular, inside scattered shortly glandular-pubescent.
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