The origins of Smurf (TAT) is a bit of a mystery. While it is generally agreed upon that it is an isolation of TAT (possibly TAT Ghost), the person who isolated Smurf is unknown. 
Similarly to TAT Ghost, Smurf is produces small albino fruits. The caps can be small or big and floppy. Smurf gets it's name from the blue hue that shows up in the cap as the fruits mature.