The song The Wearing of the Green commemorated their exploits and various versions exist which mention the shamrock .
The United Irishmen adopted green as their revolutionary colour and wore green uniforms or ribbons in their hats , and the green concerned was often associated with the shamrock .
The song The Wearing of the Green commemorated United Irishmen 's exploits and various versions exist which mention the shamrock .
The United Irishmen adopted green as their revolutionary colour and wore green uniforms or ribbons in their hats , and the green concerned was often associated with the shamrock .