Description from Flora of China
Urostigma strictum Miquel, Pl. Jungh. 1: 50. 1851.
Trees, 15-20 m tall. Bark gray, smooth. Branches producing aerial roots; branchlets dull yellowish brown, straight. Stipules lanceolate, (0.7-)1.5-2.5 cm, membranous, glabrous. Petiole robust; 0.9-1.8 cm, glabrous; leaf blade oblong to broadly ovate, ± symmetric, 4-12(-15) × 3-6(-7) cm, ± leathery, drying greenish gray to pale greenish brown, glabrous, base rounded to broadly cuneate, margin entire, apex acuminate to mucronate; basal lateral veins short, secondary veins 10-16 on each side of midvein, anastomosing near margin, indistinct from tertiary veins. Figs axillary on leafy branchlets, paired or sometimes solitary, yellow when mature, globose to oblong, 1.5-1.8 cm in diam., smooth, apical pore liplike, bracts 3 and small, sessile; involucral bracts broadly ovate, 3-10 × 3-13 mm, persistent, conspicuous. Male, gall, and female flowers within same fig. Male flowers: few, sessile; calyx lobes 3; stamen 1; filament shorter than anther; anther cordate. Gall flowers: sessile or pedicellate; calyx lobes connate, apically 4-lobed; ovary smooth; style ± lateral, short. Female flowers: calyx lobes 4; style long. Achenes sparsely tuberculate. Fl. and fr. May-Aug.
300-1800 m. S to SW Yunnan [India, Indonesia, Malaysia, Vietnam].