|Dandelion Seed Head; credit: Greg Hume|
Fruit protect seeds and help in their distribution. They are typically a mature ovary that thickens and encases the seed as it ripens. We're all familiar with the fleshy fruit of favorites like pears, apples and oranges but grains like rice and maize are also technically fruit. The structure of each determines its method of dispersal. While an apple might be consumed by an animal and it's seeds deposited far away in it's droppings, the fruit of dandelion are carried by the wind.