From WordNet (r) 2.0 (August 2003) [wn]:
floret
n : a diminutive flower (especially one that is part of a
composite flower)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Floret \Flo"ret\, n. [OF. florete, F. fleurette, dim. of OF.
lor, F. fleur. See Flower, and cf. Floweret, 3d
Ferret.]
1. (Bot.) A little flower; one of the numerous little flowers
which compose the head or anthodium in such flowers as the
daisy, thistle, and dandelion. --Gray.
[1913 Webster]
2. [F. fleuret.] A foil; a blunt sword used in fencing.
[Obs.] --Cotgrave.
[1913 Webster]