Passionfruit
A ripe passionfruit and the cross-section of another. Passionfruits are the fruit of the passion flower vine species Passiflora edulis, which is native to Brazil and northeastern Argentina, but is now cultivated commercially in frost-free areas in many countries for its fruit. Passionfruit comes in two varieties: purple (seen here), which is usually smaller than a lemon, and yellow, which is about the size of a grapefruit.Photo credit: Fir0002