Cyanogenic glycosides from the rare Australian endemic rainforest tree Clerodendrum grayi (Lamiaceae)

Cyanogenic glycosides lucumin and prunasin are reported for the first time in the family Lamiaceae, from foliage of the rare Australian endemic rainforest tree Clerodendrum grayi. This is the first report of the diglycoside lucumin in vegetative tissue, and the first reported co-occurrence of lucumin and prunasin.