Machilus pauhoi seeds mature in July. 刨花润楠 bao hua run nan. Trees, to 20 m tall; trunk to 30 cm d.b.h. Branchlets glabrous or puberulent at base of young shoot. Terminal buds usually densely brownish sericeous. Leaves usually congested at apex of branchlet; petiole 1.1-1.6(-2.5) cm, glabrous; leaf blade elliptic or narrowly elliptic, sometimes oblanceolate, 7-15(-17) × 2-4(-5) cm, leathery, abaxially appressed sericeous, rarely glabrate, adaxially glabrous, midrib distinctly elevated abaxially, concave adaxially, lateral veins slender, 12-17 pairs, veinlets most slender, inconspicuous on both surfaces, base cuneate, apex acuminate or long acuminate. Cymose panicles on lower part of 1-year-old branchlet, ca. as long as leaf blade, puberulent, with a few flowers, branched ca. at middle or upper part of peduncle. Pedicel slender, 8-13 mm. Perianth lobes ovate-lanceolate, ca. 6 mm, puberulent on both surfaces. Stamens glabrous; glands of 3rd series stipitate. Staminodes ca. as long as glands, ca. 1.5 mm. Ovary subglobose; style longer than ovary. Fruit globose, ca. 1 cm in diam., black when mature.