Dandelion

Dandelion is probably the most dreaded weed out there. It derives its name from a French phrase ("Dent de Lion"), which means "Lion's Teeth" referring to the saw-shaped leaves. If uncontrolled it can turn your landscape into a dandelion crop. Dandelion control or elimination is very hard without a chemical weed killer or a good weed plucker that can systematically pull out all the roots. Nevertheless, the flowers look beautiful and are even edible. I have never tried it myself but here is a recipe for a "Summer Dandelion Salad".

Once the flower dries the seeds become airborne with the help of their parachutes.