Largeflower Mexican Clover, an introduced species, has been added to the USWildflowers database (03/21/2016.) Scientific name is Richardia grandiflora.  Photo below was taken in Venice, Florida on Jan 20, 2015.   Go to the Largeflower Mexican Clover detail page for more information.

Largeflower Mexican Clover – Richardia grandiflora