Have a question for the bramble experts. As I've mentioned earlier in this or other threads, we have wild black rasps growing on the side of our driveway, and they're intermingled with wild blackberries. We are down to just a handful of rasps and the blacks are just kicking in on various places around the farm.
We found a cane that has fruit that has a blackberry shape, but has large druplets and actually don't have that bitter taste of some of our other ripe blacks. To me they taste like a mild rasp, but definitely have a black overall flavor. Could it be possible that this is a wild cross between the two species?