What does the word "dahlia" mean?

I am reading about the black dahlia on www.crimelibrary.com and i does this word mean?

What does the word "dahlia" mean?
Tis truly a flower. And good looking up on her. In a book I have called Severed, the killer is from my home town of Canton, OH. Whether this is true or not I do not know. But damn it is weird going by where he used to live as the houses still stand. It is by the Timken Roller Bearing Co. (And hear I though the most f*cked up thing to come from my area was my friend Brian Warner aka Marilyn Manson LOL) Too bad the movie they did did not do anything for her.
Reply:A dahlia is a garden flower with a lot of brightly coloured petals.
Reply:It's a flower
Reply:It's a various colored flower found in the mountains of Mexico, Central America, and Colombia.
Reply:A dahlia is a flower.
Reply:It's a flower. Not sure if there are any other uses for the word.
Reply:It is a flower. What meaning is associated with it I don't know.

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