Only really familiar with The Stiperstones from Malcolm Saville's "Lone Pine" series along with the Long Mynd.
I do recall an outcrop called "Cranberry Rock" though and a quick 'google' has lead me to a whole new bunch of berries to investigate , as well as rekindling memories of some great reading , off to find the books again now , thanks for the memory jog ...
https://www.shropshirewildlifetrust.org.uk/blog/autumn-berries