Deciduous small trees, sparse shrubs;
Branches: There are long branches, short branches and budless twigs (i.e. new branches), which are smoother than the long branches, purple-red or gray-brown, zigzag-shaped, with 2 stipulated thorns, the long thorns can reach 3 cm, thick, straight, short Thorns are downwardly curved, 4-6 mm long; short branches are short, thick, rectangular, emerging from old branches; current-year branchlets are green, drooping, solitary or 2-7 clusters on short branches;
Leaves: Leaves are papery, ovate, ovate-elliptic, or ovate-oblong; 3-7 cm long, 1.5-4 cm wide, apex blunt or rounded, sparsely sharp, with a small tip, and a slightly pointed base. Asymmetrical, nearly round, with crenulated edges, dark green above, hairless, light green below, hairless or only sparsely hairy along the veins, with three veins at the base; petiole 1-6 mm long, Or on long branches up to 1 cm, hairless or sparsely hairy; stipule spines are slender and often fall off later;
Flowers: Flowers yellow-green, bisexual, 5-cardinal, glabrous, with short total pedicels, solitary or 2-8 densely packed into axillary cymes; pedicels 2-3 mm long; sepals ovate-triangular; petals obovate. , with claws at the base, as long as the stamens; the flower disc is thick, fleshy, round, and 5-lobed; the lower part of the ovary is hidden in the flower disc and is connate with the flower disc, with 2 cells, each room has 1 ovule, and the style is 2 and half-lobed;
Fruit: Drupe is oblong or oblong, 2-3.5 cm long and 1.5-2 cm in diameter. It is red when mature and turns reddish-purple later. The mesocarp is fleshy, thick and sweet. The core has a sharp top and a sharp base. or blunt, 2-loculed, with 1 or 2 seeds, fruit stem 2-5 mm long; seeds oblate-elliptic, about 1 cm long and 8 mm wide;
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