4. Triumfetta grandidens Hance, J. Bot. 15: 329. 1877.
粗齿刺蒴麻 cu chi ci shuo ma
Herbs woody, creeping or not, many branched; stems pubescent, hairs simple, or glabrous. Petiole 5-10 mm, hairy; lower leaf blades rhomboid, 3-5-lobed; upper ones oblong, 1-2.5 × 0.7-1.5 cm, both surfaces glabrous or abaxially hairy on veins, basal veins not strongly ascending, base cuneate, margin serrate, apex obtuse. Cymes 10-20 mm; peduncle 5-7 mm. Pedicel 2-3 mm. Sepals filiform, ca. 6 mm, abaxially puberulent. Petals broadly ovate, slightly shorter than sepals, shortly stalked. Stamens 8-10. Ovary 2- or 3-loculed. Capsule globose, spiny, indehiscent; spines 2-4 mm, puberulent or glabrous, tip shortly hooked. Fl. winter-spring.
Sandy coasts, coastal wastelands. Guangdong, Hainan [Cambodia, Malaysia, Thailand, Vietnam].
Triumfetta grandidens has been included within T. repens (Blume) Merrill & Rolfe, but the combination of small leaves with relatively very large triangular marginal teeth is very distinctive.