There are many facts about dandelions in Wikipedia, I found particularly interesting the following excerpt:
'The name dandelion is a derivation of the Old French, dent-de-lion, literally "lion's tooth" on account of the sharply lobed leaves of the plant. In modern French the plant is called pissenlit, "urinate in bed", referring to its diuretic properties. Likewise, "pissabeds" is an English folkname for this plant, "piscialletto" in Italian and "meacamas" In Spanish (otherwise known as "diente de león", lion's tooth)'
The dandelion plant and flower can be eaten in salads, soups and there is even dandelion wine.
I have seen the "dandelion clock" and its seeds tortured and beautifully photographed by our member Raquel Gor :-)
This picture shows the bracts of the flower, many times confused as sepals, which allow the little "parachutes" to form and disperse at maturity.
Oops! I think that I just spoiled the romanticism :-(