A native raspberry? Yes, and it tastes great! The fruit of Rubus leucodermis is 1?1.2 cm diameter, reddish-purple, and dark blue to nearly black when ripe, and can be confused with blackberries.
The fruits are a conical pod with seeds contained in holes in the pod. When the seeds are ripe, they become loose in the pod. The pod then tips down towards the water, releasing the seeds.