Description from Flora of China
Heptapleurum macrophyllum Dunn, J. Linn. Soc., Bot. 35: 499. 1903.
Trees, to ca. 20 m tall, apparently hermaphroditic. Petiole 45-100 cm; petiolules 4-15 cm; leaflets 5-7, ovate-elliptic, 20-55 × 8-22 cm, leathery, abaxially densely white to light brown-orange tomentose, epidermis obscured, adaxially glabrous, secondary veins 8-12 pairs, raised adaxially, base rounded to subcordate, margin entire or inconspicuously serrate apically, minutely thickened, sometimes revolute, apex acuminate. Inflorescence a terminal panicle of umbels, densely ferruginous-brown stellate pubescent, glabrescent; primary axis to ca. 75 cm; secondary axes to ca. 40 cm; pedicels 3-10 mm. Calyx lobes ferruginous stellate pubescent, entire or inconspicuously 5-toothed. Ovary 5-carpellate; styles united into a column ca. 1.5 mm. Fruit globose, ca. 5 mm in diam., 5-angled when dry; persistent calyx lobes ferruginous; styles persistent, ca. 2 mm. Fl. Sep, fr. Nov-Dec.
Forests in valleys; 1900-2600 m. S Yunnan [N Vietnam].