Sixty flavonoids were isolated from aerial parts of H. micrantha var. diversifolia. The flavonoid aglycones represented were kaempferol, quercetin, isorhamnetin, myricetin, laricytrin (myricetin-3''-O-methyl ether), syringetin (myricetin-3'',5''-di-O-methyl ether) and luteolin. Flavonol glycosylation patterns included 3-O-monoglycosides, 3-O-diglycosides, 3-O-triglycosides, 3,7-di-O-monoglycosides and 3-O-diglycoside-7-O-monoglycosides. Quercetin- and myricetin-3-O-glucoside-6"-gallates were also found. The sole luteolin derivative was the 7-O-glucoside. Also identified were the 3,5-di-O-glucosides of malvidin and either petunidin or delphinidin and (-)-epigallocatechin gallate. A brief discussion of the flavonoids of the Saxifragaceae is presented. Methods combining column and TLC are described, which are generally useful for analysis of complex mixtures of polyphenolic compounds.