Small slender tree up to 15 m, or shrub; trunk often crooked; branchlets rufous-tomentellous when young, soon glabrescent, striate. Simple leaves (once found, San 10041) obovate-oblong, rounded at the blunt apex, tapering into the petiole and somewhat decurrent, subcoriaceous, glabrous, 30-40 (or more?) by 9-12.5 cm, nerves 14-16 pairs slightly curved upwards and ± parallel, excurrent along the edge, crossbar-veined; petiole glabrous, 8-14 cm, thickened at the base. Pinnatiseet leaves ± shining, glabrous, up to 90 cm long; lobes in 5-8 pairs narrow-oblong or obovate-oblong, shortly acuminate, 15-30 by 3-18 cm, the sinuses ± rounded and mostly 1-3 cm distant from the common midrib, rarely produced to it; nerves 10-15 pairs, mostly straight, inarching in a ± distinct intramarginal vein; petiole 3-5 mm across, it rufous-pubescent initially, glabrous or glabrescent, (6-) 10-18 cm. Racemes solitary or 2-3 (rarely up to 10) in a fascicle, rami-and cauli-florous, (5-)15-30(-60) cm, ± dense-flowered, it densely appressed-rusty-pilose; rhachis 1.5-2.5(-3) mm across. Bracts lanceolate, 0.5-1 mm, it caducous. Pedicels mostly in pairs, rather slender, free or connate up to 2/3 their length, (3-)5-7(-8) mm. Perianth somewhat fragrant, whitish or yellowish, 14-15 mm, tube in the ♂ flowers 4/5-1 mm across, in the female ones c. 1.5 mm, limb clavate 1.5-2.25 mm across. Anthers 2-2.5 mm. Disk glands ovate-oblong, free, ± approximate, thus seemingly forming a cup. Ovary glabrous. Fruit yellow when ripe, cylindric-ellip-soid, (3-)4-4½ cm by (2-)2½-3 cm (mature?), smooth, shining; exocarp leathery, thin; mesocarp built up by radial rather soft brown fibres c. 3 mm in length; endocarp hard, rather woody, reticulate-lacunose, 1 mm.
In rain-forest, up to 900 m, on well-drained slopes, ridges, and steep river-banks, apparently scattered, fairly common in W. Kutei. Fl. Febr., Apr.-Oct., fr.--10.
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A tropical plant. It grows up to 900 m above sea level.
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