Perennial herb. 15-120 cm high, stems upright, cylindrical, thin vertical fin, or the upper branches and more branches, or by dredging of the stellate hair and mixed with single-hair. Chemical constituents of the whole plant flavonoids, leaf containing vitamin C130 mg / kg. Packing type: Vacuum plastic bags,2.5kg/bags,10kg/carton,20kg/carton, 25kg/carton.
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