Review: The strawberry is an accessory fruit; that is, the fleshy part is derived not from the ovaries which are the "seeds". Strawberry varieties vary remarkably in size, colour, flavour, shape, degree of fertility, season of ripening, liability to disease and constitution of plant. Strawberries are often used to flavor other foods, such as ice cream.One cup (144 g) of strawberries constitutes approximately 45 Calories (188 kJ) and is an excellent source of vitamin C and flavonoids.