Abstract
Analogues of the 2 predominant groups of flavonoid components, based on robinetini-din and fisetinidin, were isolated or identified from fresh mature black-wattle bark. Myricitrin and quercitrin, related to the 2 minor groups based on delphinidin and cyanidin, were isolated from fresh immature black-wattle bark. All flavonoid components hitherto isolated from black-wattle bark fall into 1 of these 4 patterns of phenolic hydroxy lation.