Roses evolved 35 million years ago. We know because we've found fossils!
There are about 150 species of rose, growing all across the Northern Hemisphere, and humans have been growing them for about 5000 years. The practice probably started in Ancient China, before spreading to Ancient Persia, where damask roses were first bred – named after the city of Damascus in Syria.
The Persians also first developed methods for obtaining rose water and rose absolute, for flavourings and fragrances.
Here are some fossilised roses!
Some people like to make fossil shark teeth into necklaces. But honestly, give me a fossil rose thorn instead, anyday!
Apples, on the other hand, are free standing trees. They don't need to climb, and their softer shoots need no defences because they're out of reach of small, nibbling animals.
I suspect some of the free standing rose cultivars humans have bred, if left alone for evolution to do its thing, would eventually lose their thorns too.
Sunbeam City is a Libertarian Socialist solarpunk instance. It is ran democratically by a cooperative of like-minded individuals.