Shrubs, 30-50 cm tall. Branches zigzag, spiny-pointed; bark grayish green; xylem yellow. Stipules small, membranous. Leaves on old branches fascicled and on current shoots opposite, with 2 leaflets; petiole 0.6-1.5 cm; leaflet blades linear, equal in length to petiole, fleshy. Flowers axillary, solitary or paired. Pedicel 6-10 mm. Sepals 4, elliptic, fleshy, often persistent. Petals 4. Capsule linearly ovoid, spindlelike, or obovoid, 1-1.6(-2.4) × 0.8-1.6 cm, pendulous, wings 2-3 mm wide. Fr. Jul.
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