Scientific name of flower: Bidens alba
Common name: Beggarticks or Romerillo.
Flowers: The flowers have numerous parts and are up to 4 inches long and are up to 2 inches wide. They are white with a yellow disk. Blooms first appear in early spring and continue into late fall. Sometimes the rays are completely absent.
This flower was found growing in Pasco county Florida, and is native to all of Florida, and many other states in the southeast US.