Besides previously reported hydrolyzable tannin oligomers (woodfordins A-D), a new hydrolyzable tannin monomer [isoschimawalin A (7)] and five oligomers (woodfordins E-I) have been isolated from the dried flowers of Woodfordia fruticosa (an Indonesian crude drug, Sidowaya), and their structures elucidated on the basis of spectra and chemical evidence. Woodfordins G (14) and H (15) were characterized as dimers with structures related to woodfordin B (2). Woodfordins I (16), E (23) and F (24) were a macrocyclic dimer, trimer and tetramer, respectively.