Shrubs 1-2 m tall, monoecious. Branchlets and petioles densely snow white tomentose and mixed hirtellous. Leaves often crowded at apex of stem and branches; stipules lanceolate, ca. 7-8 mm, 2-cleft to middle; petiole 1.5-8 cm; leaf blade ovate to suborbicular, 12-19 × 4.6-14.7 cm, secondary veins 3 or 4 on each side in distal 1/3, velutinous along veins adaxially, thickly snow white tomentose and appressed strigose abaxially, base obtuse to rounded, margin finely crenulate, apex acuminate. Cymes in pairs, 1.5-4 cm; glomerules lax, 2-3 mm in diam.; bracts elliptic-spatulate, membranous. Achene ovoid-ellipsoid, ca. 1 mm, appressed strigillose. Fl. May-Jul, fr. Aug-Oct.

Thickets, along streams, valleys; below 200 m. Taiwan (Lan Yu, Lu Dao) [Japan (Ryukyu Islands), Philippines].