Bananas.
Some are grown only for decoration, and will produce a small, inedible fruit.
Any plant has one reason for living and that is to reproduce. Therefore the pineapple will fruit to provide seed to further the species.
Fruits
Pineapple grows from a ground bush.
no trees exist that don't produce flowers but produce fruit
There is a few different pineapple jokes that have been told. The most popular pineapple joke told is What kind of fruit do trees like the most?
Orchards are groups of fruit trees, so the produce fruit, therefore they produce seeds.
Apple trees produce fruit once a year. Different varieties mature at different times.
pineapple is a fruit
Fruit are the swollen ovaries of fruit trees. The ovaries swell so that they can drop to the ground and produce more fruit trees. the trees grow and more fruit grows on the tree
Pineapples don't grow on trees. They grow as a big ground-hugging spiky plant like a bromeliad. They look like a big tuft of leaves with a pineapple in the middle sprouting another tuft of leaves, sort of like a giant orangey thistle. However, they aren't thistles, like artichokes. I think they actually are a kind of edible bromeliad.