Trichosanthes prazeri Kundu; T. rubriflos Thorel ex Cayla f. macrosperma C. Y. Cheng & C. H. Yueh; T. tridentata C. Y. Cheng & C. H. Yueh.

Stem moderately robust, grooved, punctate. Petiole slender, 4-5 cm, punctate; leaf blade abaxially pale green, adaxially green, suborbicular, 10-15 cm, papery, deeply palmately 5-7-lobed; lobes elliptic-obovate, abaxially glabrous, glandular punctate on veins, adaxially glandular punctate, narrowed toward base, cuspidate. Male racemes 8-10 cm; peduncle stout, striate, densely pubescent or punctate, 5-10-flowered; bracts brown, broadly ovate, ca. 5 × 4 cm, abaxially punctate, margin deeply serrate; calyx tube ca. 5 cm; segments pale red. Female flowers unknown. Fruit oblong, ca. 8 × 6 cm, smooth, apex acute. Seeds ovoid, turgid, ca. 1.2 × 0.8 cm. Fl. Jul-Sep, fr. Oct-Nov.

Dense forests along valleys or thickets; 900-1900 m. Guangxi, Guizhou, Sichuan, Yunnan [Laos, Myanmar, N Thailand].