Description from Flora of China
Woody climbers or erect or scrambling shrubs, with recurved spines 2-8 mm or unarmed. Leaves 1-foliolate or simple; petiole 5-12 mm; leaf blade ovate to elliptic to obovate, 5-12 × 2-4.5 cm, glabrous or abaxially grading from sparsely pubescent to ± densely pubescent on midvein, base rounded to obtuse, margin crenate toward apex or entire, apex acuminate to shortly so. Pedicel 3-5 mm. Flowers 5-merous, ellipsoid to obovoid in bud. Sepals 0.5-1.5 mm, pubescent and/or margin ciliate, per-sistent in fruit. Petals 6-10 mm, glabrous, deciduous in fruit. Stamens 10; filaments pubescent. Disk thickly columnar, ca. 1 mm, glabrous, ± accrescent and forming a stipe in fruit. Ovary hirsute; style ca. 5 × as long as ovary, pubescent basally or glabrous. Fruit reportedly green, ± globose, larger ones 1.5-2 cm in diam., subtended by a 1.3-2 mm stipe. Fl. Jul-Sep, fr. Oct-Dec.
Plants mistakenly treated as Paramignya rectispinosa Craib by C. C. Huang (Fl. Reipubl. Popularis Sin. 43(2): 155. 1997) belong here.
Forests, streamsides, trailsides; 300-900 m. Guangdong, S Guangxi, Hainan, S Yunnan (Xishuangbanna) [N Vietnam].