Lagerstroemia indica L. was collected from the N.R.C. grounds and used as ornamental. Previous work on it was none. The flowers were extracted with 0.1% methanolic HCl. Following standard procedures, the extract revealed three anthocyanins which were identified by strong and mild acid hydrolysis, H₂O₂ oxidation and UV spectra, as delphinidin-3-arabinoside, petunidin-3-arabinoside and malvinidin-3-arabinoside. This is the first record of the isolation of the three arabinosides, although they had been reported as an unseparable mixture with other arabinosides in the berries of Vaccinium angustifolium. Also, delphinidin-3-arabinoside has been recently identified in the Epacridaceae. Along with the three anthocyanins, gallic acid, methyl gallate, ellagic acid and traces of three C-glycosides were also identified.