Most of us remember picking dandelions as a child and blowing on them sending the seeds into the air. Dandelions, Taraxacum officinale, are found just about everywhere at just about every time of the year. Although considered a weed by most people, this was not the case until the 20th century. Take a moment when you find a dandelion blowball like this one and release your inner child. Photo by Rosa Durrer