Hongyouguo is an alias for small sticky leaves, aliases: Thousand-pound tree, red oilfruit, smelly oilfruit, bright-leaf fragrant, fragrant fruit, fragrant fruit tree.

Large deciduous tree. The bark is grey-brown and scaly; the branchlets are lenticel, thick and expanded. Leaves papery or leathery, broadly elliptical, broadly ovate or ovate-elliptic, apex short-pointed or suddenly acuminate, sparsely blunt, base short-pointed or broadly cuneate, entire margin, hairless or sparsely strigose above. , pale below, pubescent or pubescent only along the veins, conical cymes terminal; flowers fragrant, calyx tube, lobes nearly round, ciliate, falling off; corolla funnel-shaped, white or yellow, Covered with yellowish-white tomentose, lobes nearly round, filaments covered with tomentose. The capsule is oblong-ovate or nearly spindle-shaped, hairless or pubescent, with longitudinal thin ribs; there are many seeds, small and broad-winged. The flowering period is from June to August, and the fruiting period is from August to November.