Shrubs, 0.5-1.5 m tall, spiny, glabrous; thorns slender, 1-1.8 cm; biennial branches thorny. Petiole very short, 1-2 mm; leaf blade broadly obovate, obovate, or elliptic, 1-2 × 0.6-2.4 cm, subleathery, base subrounded, broadly cuneate or cuneate, margin crenate, apex subrounded, rarely retuse or shortly acute; lateral veins 3-5 pairs, tenuous. Cymes fascicled in short branches, ca. 3-flowered, 2-4 × branched, monochasial; peduncle slender and short, ca. 5 mm; bracts small, narrowly lanceolate, ca. 0.8 mm; pedicel slightly short, 1-2 mm. Flowers small, ca. 2 mm in diam.; sepals ovate, ca. 0.5 mm, ciliate; petals oblong-ovate, white, ca. 1.5 mm. Filament very short or absent. Ovary without style; stigma 3-lobed. Capsule reddish, obovoid, 5-8 mm, 6-9 mm in diam., 3-valved. Seeds red-brown, oblong-ellipsoid, basally covered by small aril. Fl. Jun-Aug, fr. Aug-Dec.
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