An interesting growth on a Dog Rose known as a rose bedeguar gall, Robin’s pincushion, mossy rose gall or moss gall. A gall wasp known as Diplopepis rosae causes these galls (Plant galls are abnormal outgrowths of plant tissues, similar to benign tumours) they mainly develop directly after the female insect lays the eggs.
Continued Reflections from my World. 
This is a first for me. Very interesting.
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do you have a picture of a normal one so I can compare Andy?
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Most common gall here is a hard ball – like a marble – just ordered a book on British Galls so I am on the hunt for these for future posts.
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thanks Andy!
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