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Leaf-lamina 6–9 × 3·5–6 cm., elliptic to oblong or obovate-oblong, obtuse to slightly emarginate and sometimes acute or apiculate at the apex, rounded to slightly cordate at the base; upper surface minutely tuberculate-subreticulate, slightly scaberulous with straight or nearly straight generally simple pachydermatous hairs developed on minute, white tubercles and sometimes mixed with smaller penicillate ones; lower surface fulvous-pubescent with straight or curled meso-pachydermatous (medium-thick-walled) hairs on the nerves, veins and reticulation, and with interreticular areoles covered with minute stellate hairs; midrib very thick and prominent beneath; lateral nerves in 10–12 pairs (with a weak tendency to the formation of short subsidiaries), nearly straight, some of them furcate near the apex, nerves and bifurcations reaching the margin of the leaf; reticulation very prominent and forming deep cavities; petiole thick, 1–2 cm. long.
Fruits densely crowded (see TAB. 81 fig. A1) at the ends of the branches, 7–9 mm. in diam., subglobose, reticulate, tomentose, conical at the apex; wings 2·5–4 × 1–1·5 cm., reddish-purple, generally narrowly obovate-oblong to spathulate.
Inflorescences of subsessile condensed multiflorous clusters forming large terminal panicles, up to 15 cm. long, fulvous-or rufous-tomentose; pedicels 1–3 mm. long.
Petals 8–10 mm. long, densely sericeous-tomentose.
Tree up to 13–14 m. high; branchlets tomentellous.
Sepals 3–4 mm. long, densely sericeous-tomentose.
Stamens with anthers not produced at the apex.
