Evergreen shrubs or small trees, 2-5 m tall. Young branchlets densely yellow hirsute and becoming glabrous. Leaves 4-6-verticillate; petiole 2-6 mm, densely yellow villous; leaf blade long lanceolate or long elliptic-oblanceolate, 7-25 × 2-6 cm, pubescent abaxially, pinninerved, lateral veins 12-14 pairs, base acute, obtuse, or rotund, apex acuminate. Umbels in cluster of 2-10 at apex of branchlet, 5-8-flowered, pale yellow, subsessile. Perianth segments (4-)6, lanceolate. Male flowers: fertile stamens 9; filaments exserted, villous, of 3rd whorls each with 2 peltate-cordate glands at base; rudimentary pistil lacking. Fruit ovoid or ellipsoid, 10-15 × 5-6 mm, seated on discoid perianth tube; fruiting pedicel short. Fl. Apr-Nov, fr. Nov-Jun of next year.
Valleys, streamsides, thickets, weed-tree forests; at elevations below 1,300 metres in southern China. Occasionally by streams in dry evergreen forest, tropical rain forest and lower montane forest; 350-1,200 metres.
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