From the twigs of Oxymitra velutina 23 compounds belonging to the alkaloids, flavonoids, phenylpropan-oids, sterols and sesquiterpenes have been isolated. Among the alkaloids, aporphine-type and related constituents prevail. (2S)-5,6,7-Trimethoxyflavanone has been isolated as a natural product for the first time. © 1991.