Here are the fruits of the native trailing blackberry. It ripens to form a black, delicious berry just like you would imagine. Although, they don’t form the abundant clusters of fruit like the Himalayan blackberries that most people are used to picking around here.
It is fairly easy to identify the native blackberry. The vines are fairly thin and trail along the ground. They do have thorns that will grab on to you and snag a thread in your clothes or lightly scratch your skin. That said, they don’t form dense, impenetrable thickets of stout canes with sturdy thorns like the Himalayan blackberry that will easily shred you and your clothing. The trailing blackberry usually forms leaves that consist of three, ovate, toothed leaflets but they can form five leaflets too. The Himalayan blackberry generally has five leaflets but can also have three leaflets that are also toothed but have a more round, oval-shape.
The last photo below shows the Himalayan blackberry in the top of the photo and the trailing blackberry in the bottom of the photo for comparison.