显脉大参 xian mai da shen

Trees, to ca. 5 m tall, probably andromonoecious. Petiole 3-7 cm; petiolules 0.3-3 cm; leaflets 3 or 4, oblong-elliptic or oblong, 7-16.5 × 4-9 cm, papery, both surfaces glabrous, secondary veins 6-8 pairs, tertiary veins distinct, raised on both surfaces, base rounded, margin sparsely crenulate, apex shortly acuminate. Inflorescence paniculate, densely brown pubescent; primary axis ca. 20 cm, secondary axes to 6 cm, with a terminal umbel and usually 3 lateral umbels; pedicels 4-9 mm. Calyx 5-toothed, glabrous. Fruit unknown. Fl. Nov.

● Scrub on mountain slopes; 800-900 m. S Yunnan.