This article is full of photos and descriptions of 18 types of wild berries that North Americans will be treated to in the coming months. I haven't tried them all, but I certainly would like to. Article author Wes Siler's favorite berry, the cloudberry, is shown in the photo above. Cloudberries are found in northern Canada, Siberia and Scandinavia. They're salmon/golden in color and are so tart that Siler says they may be most palatable to people when made into a sweetened jam.
Aside from the requisite Monty Python jokes about elderberries, the comments underneath the article have almost as much information as the article, so they might be of interest as well. Read the text and comments here.