The boysenberry is a cross among the European raspberry (Rubus idaeus), European blackberry (Rubus fruticosus), American dewberry (Rubus aboriginum), and loganberry (Rubus × loganobaccus). It is a large 8.0-gram (0.28 oz) aggregate fruit with large seeds and deep maroon color. Boysenberries grow on low, trailing plants and are characterized by their soft texture, thin skins, and sweet-tart flavor. Mature fruits leak juice very easily and can start to decay within a few days of harvest.
 

Fruits II

In botany, a fruit is a seed-bearing structure in flowering plants formed from the ovary after flowering.

Fruits are how flowering plants disseminate their seeds. Edible fruits, in particular, have long propagated using the movements of humans and animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; in fact, humans and many animals have become dependent on fruits as a source of food.