From http://www.daisyparadise.fsnet.co.uk/articles/prettyaprildaisy.htm:

The Marguerite Daisy (Leucanthemum vulgare) or herb Margaret is the floral emblem of St. Margaret, whose feast is celebrated July 20th. Herb Margaret is most likely attributed to Margaret of Anjou who was no saint. She was the ruthless and extremely ambitious wife of Henry VI who, in 1422, succeeded to the thrones of both England and France. She had daisies embroidered on her personal banner.

-- Frag
who's beginning to fear the Reaper, if this thread goes on much longer...

Update: (because I can't help myself)
From http://www.clicksparkle.com/brthstn.html:
...The word {pearl} is probably an adaption of (Old)French perle, meaning a pearl or a berry, and medieval Latin perla. According to Barnhart and Partridge, both of the words come from vulgar Latin pernula, which is the diminutive form of Latin perna meaning ham, ham-shaped or mollusc...

So, to finally tie this back into baby names, "Shelly" or "Virginia" (ham, geddit?) would also work. Maybe.