Alkaloids, phenols, glycosyl flavonoids and cyanogenic compounds are known in the genus. Literature survey has revealed that a number of reports are available on Passiflora incarnata and Passiflora edulis, while only sporadic reports are there on other species of Passiflora. Thus, Passiflora incarnata and Passiflora edulis have been dealt with as separate heads in the following passages, and the remaining species of Passiflora have been presented in a tabular form.