Daisy has one of the largest families of flowering plants, if we consider it has over 1500 genera and more than 23000 species. These can be annual, or perennial, whereas some even grow as shrubs or trees. Because of that, we could actually say that anyone can take his/her pick of his/her most favorite daisy type.
In Celtic tradition, daisies are considered spirits of children who died at birth and got permission to return to earth to comfort their mourning parents. In some Christian traditions, they are a symbol of those who return to faith and become pure by washing sins, and so it is considered to be the flower of innocence.
By offering daisies to a lovely lady, a fine gentleman can actually mean to say that she has as many qualities, as the number of the daisy's petals. Like most flower names, "Daisy" is also used for girls' names, to suggest the grace, mild fragrance and delicate beauty of this pretty flower.
The name "Daisy" can also be found in many famous TV series, movies or cartoons. Thus, in "Daisy the Diesel Railcar" there is a railway engine called Daisy. Also, in Pokémon, the Kanto Gym Leaders are called Daisy, Lily and Violet. In the Super Mario Series, there is a character called Princess Daisy.
Daisy Duck was one of Walt Disney's comic book and cartoon characters who initially appeared in 1940. Daisy was also a character from Toy Story 3. Daisy was the name of the main character in Baby with the Bathwater.
Also, Daisy was an animated orange/yellow/green flower in Oswald; Daisy was Charlie's porn star client in Californication; also, a character in Spaced; Daisy was also the nickname of Tasuku Kurosaki from the manga series called Dengeki Daisy. Also, in Scott Fitzgerald's novella entitled "The Great Gatsby", we have a character named Daisy Buchanan.
In Ben and Holly's Little Kingdom, there are two fairy twins called Daisy and Poppy. There is also a character in the Warriors novel series that bears the name of Daisy. In "Bones", Daisy is Sweet's girlfriend and in "Look to the Lady", Daisy is the local stable owner.
Like daisies popping out everywhere in nature, the name of this flower also appears all over the place, in real life people's names, novels, novellas, movies, TV series and TV shows, cartoons. This may be seen as another proof of nature's great power inspie people. We could say that nature can also cause the desire to be compared with beautiful elements.