Do you know the Buckinghamshire county flower?
It is the rather stunning Chiltern Gentian – considered to be one of the prettiest gentians, it is a rare plant in the UK. As the name suggests It favours the chalk grasslands of the Chilterns 
It blooms late August to early September and you can see them at their best at Marlow’s SSSI site Homefield Wood https://www.bbowt.org.uk/nature-reserves/homefield-wood