Tree, up to 15 meters high; young branches covered with brown pubescence, branchlets dark brown or purple-black, with prickles. Leaves are papery, ovate-oblong or ovate, sparsely oblong, 5-14 cm long, 3-6 cm wide, apex acuminate or short acuminate, with a blunt tip, sparsely nearly round, base nearly Round or slightly heart-shaped, slightly asymmetrical, with crenulate serrated edges, dark green above, hairless or only sparsely pilose on the midrib, light green below, initially pilose or sparsely hairy along the veins, then falling off, or There are sparse pubescence along the base of the veins, with three or sparsely five veins emerging from the base, and the network veins are obvious below; the petiole is 5-11 mm long, covered with brown pubescence; the stipule has 1-2 spines, upright, 4-6 long mm, early fall. The flowers are green, bisexual, with 5 bases, and several to more than 10 are densely packed into axillary dichotomous cymes. The total pedicel is 7-16 mm long, covered with brown pubescence; the sepals are ovate-triangular, with a pointed apex and short soft outer surface. Hairy; petals spatulate, pocket-shaped, nearly as long as the stamens; disc thick, fleshy, 10-lobed; ovary globose, 2-chambered, apex slightly hairy, with 1 ovule in each chamber; style 2-and-a-half-lobed. Drupe is nearly spherical or spherical-elliptical, 1-1.2 cm long, 0.8-1.1 cm in diameter, hairless, with a persistent calyx tube at the base, reddish brown when mature; fruit stem 4-11 mm long, pubescent; medium Peel is thin, endocarp is thick and bony, about 3 mm thick, 2, sparsely 1-celled, with 1 or 2 seeds; seeds dark brown, smooth, shiny. The flowering period is from April to May, and the fruiting period is from June to October.