The chief executive is Victoria Chester, who took over from Jane Smart OBE in 2006.
Only 35 sites are recorded by Plantlife mostly in Norfolk, (where 100 plants were found at a new site in 1999) but includes 6 sites near Kidderminster in Worcestershire.
Dianthus gratianopolitanus - the Cheddar Pink - was chosen as the County flower of Somerset in 2002 following a poll by the wild flora conservation charity Plantlife.
The site supports the nationally rare Perfoliate Pennycress and other rare plantlife such as Curtis' Mouse-ear, Early Gentian, Field Fleawort and Burnt Orchid.