Blackthorn Rings?

Hello! I am trying to track down evidence (anecdotal/photographic or otherwise) of the existence of 'blackthorn rings' that have grown naturally as a result of an original tree sending out 'suckers' underground around itself, forming a circle of new blackthorn trees that actually allows other species to begin growing within the 'ring'. Eventually the 'mother' blackthorn tree in the middle dies. Possibly this is also why the tree has traditionally been called 'mother of the woods'? This is for a research project- if anybody has any information/ideas/advice I would be extremely grateful! Many thanks.

 

Interesting.
So any estimate on how old these rings might be or the diameter.
Heard it happens with creosote bush in deserts but never thought of it happening in our countryside .

 

Not come across it, but will have a look next time i'm up Stonebarrows