Blueberries

Brocho before eating this: Borei Pri Ha'eitz

However, if it is picked by hand from a bush that is less than approx. 9 inches: Borei Pri Ha'adama [when bought from a store it is Borei Pri Ha'eitz]

Brocho after eating the proper shiur of this: Borei Nefashos

Source: Halachos of Brochos (handbook - page 15)