Extensive chromatographic separation of the n-BuOH soluble fraction obtained from the stem and root barks of U. davidiana resulted in five hitherto unknown compounds together with a known one (−)-catechin 1. Structures of the five compounds were elucidated by chemical and spectroscopic analyses, to be (−)-catechin-7-O-gallate-5-O-(5″″-trans-caffeoyl)-β-d-apiofuranoside-3-O-β-d-apiofuranosyl-(1 → 2)-β-d-glucopyranoside 2, (−)-catechin-7-O-gallate-5-O-(5″″-trans-caffeoyl)-β-d-apiofuranoside-3-O-β-d-glucopyranoside 3, (−)-catechin-7-O-gallate-5-O-β-d-apiofuranoside-3-O-(2″-O-galloyl)-β-d-glucopyranoside 4, (−)-catechin-7-O-gallate-5-O-(5″″-trans-caffeoyl)-β-d-apiofuranoside 5, and (−)-catechin-7-O-gallate-5-O-(5″″-trans-feruloyl)-β-d-apiofuranoside 6.