
The rosier eveque rose, also known as the Bishop’s Rose, produces clusters of small, flat bluish purple and magenta flowers with hints of lilac and gray. The Bishop’s Rose nickname comes from the purple colour which evokes the colour of robes. It’s quite an old variety of rose, originating in around 1790. The first link below has the full story of the history of roses; you can play “follow the trade routes” as you read it… The second link has a couple of images of the rosier eveque in full bloom.
As for Ajman, it’s the capital of the Ajman Emirate, which is the smallest of the United Arab Emirates.
https://www.countrygardenroses.co.uk/about-us/history-of-the-rose/
https://www.vivaiolacampanella.com/catalogue_roses/gallica/807/le-rosier-eveque.html