Shrubs, 1–2 m. Stems erect to ascending, not rooting at nodes; branchlets reddish brown, sometimes glaucescent, rigid, glabrate. Leaves not fascicled, spreading to deflexed; petiole 0–2 mm; blade ± cupped, folded lengthwise adaxially, widely elliptic to widely obovate, 12–25 × 7–20 mm, base obtuse to cuneate, margins not revolute, spinose-dentate, teeth 7–15, apex rounded to sharply acute, abaxial surface pale green, sparsely strigillose, especially on veins, adaxial surface green to dark green, glabrous. Inflorescences axillary, 1.2–2.5 cm. Flowers: sepals, petals, and nectary deep blue to purple. Capsules 4–5 mm wide, lobed; valves smooth, horns subapical, prominent, slender, erect, intermediate ridges absent. 2n = 24.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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