Leaf blade 3-lobed, rarely unlobed; 3-lobed leaf blade 10-11 × 7-8 cm, base nearly rounded; central lobe ovate, apex caudate-acuminate, lateral lobes triangular, apex acute; unlobed leaf blade oblong, 8-9 × 3.5-4 cm, base rounded, apex caudate-acuminate; petiole 5-7 cm. Nutlet including wing 2-2.8 cm, 5-8 mm in diam., spreading at obtuse angle.

● Sparse forests; 1000-2500 m. SW Sichuan.