The ethanol extract of the flowers of Trollius ledebouri yielded four flavone C-glycosides, 2"-O-vanilloylvitexin, 2"-O-feruloylorientin, 2"-O-beta-L-galactopyranosylvitexin, and 2"-O-beta-L-galactopyranosylorientin, along with known compounds, 6"-O-acetylorientin, 2"-O-(4"'-hydroxybenzoyl)vitexin, vitexin, and orientin. Their structures were elucidated by means of UV, IR, MS and NMR spectroscopic analyses. (c) 2005 Elsevier Ltd. All rights reserved.