Macaranga pachyphylla Műll.Arg. var. glabra Whitmore

Small trees up to ca. 13 m tall and 20 cm dbh, reproductive from 10 m tall and 12 cm dbh. Twigs solid, glabrous, rarely glaucous. Stipules ovate to triangular, usually early-caducous, spreading, not or (almost) completely surrounding the twigs, 7-17 mm long by 4-10 mm wide. Petioles glabrous, up to ca. 15 cm long. Leaves alternate, peltate, ovate, 11-18 cm long by 6.5-10.5 cm wide, length/width-ratio 1.29-1.88; secondary veins 4-11, ending in the margin or not (looping); leaf base broadly rounded to cordate, peltate margin length 2-3.5 cm; leaf margin with or without glands; leaf upper surface glabrous; leaf lower surface glabrous to hairy on veins, sometimes glaucous, sparsely to numerously gland dotted. Staminate inflorescences branched; flowers clustered per bracteole; bracteoles with entire margins.. Pistillate inflorescences not branched; fruits ca. 8 mm wide, completely gland covered.

Ecology: Collected between ca. 500 and 1700 m altitude.

Distribution: Peninsular Malaysia, Sumatra, Java and Borneo. In Borneo only known from Sabah at high altitudes.