Hello, we have recently bought a piece of property on Whidbey Island in Washington State, and we are in the process of identifying all the flora and fauna. Two weeks ago we came across this berry cane - as you can see, a Himalayan blackberry cane is on the left, and the mystery plant is on the left. Is it a kind of raspberry? A different kind of blackberry? They're growing alongside of a country road, with a lot of water and light available. I'd really appreciate some help. Thanks in advance.