Fig. 3.

Structures of identified compounds, gallic acid (1), 7:3-mixture of meta- and para-digallic acid (2), gallic acid methyl ester (3), quercetin-3-O-(2’’-O-galloyl)-β-galactopyranoside (4), quercetin-3-O-(2’’-O-galloyl)-β-glucopyranoside (5), 7:3-mixture of meta- and para-digallic acid methyl ester (6), protocatechuic acid (7), hyperoside (8), 3,3’-dimethylellagic acid 4-O-β-glucopyranoside (9), isoquercitrin (10), guaijaverin (11), and quercetin (12)