Gentleman's Rhodium and Gold detailed Fountain Pen in Blackthorn

Prunus spinosa Family : Rosaceae Like the Apple, Hawthorn and Rowan, Blackthorn is a member of the important large Rose family. The Rosaceae have about a hundred subdivisions, called 'genera' and Blackthorn belongs to the genus 'Prunus'. Blackthorn is the most common and widespread member of the Plum genus in Great Britain.