What is "blatterle"

Blatterle is a white Italian wine grape variety from the Alto-Adige of northeast Italy. The grape, which was historically grown around the commune of Bolzano in South Tyrol and the Eisacktal valley, gets its name from the term in the local Tyrolese dialect for "little leaves". While not widely used in commercial wine production, the grape is sometimes blended with other local Tyrolese varieties, such as Fraueler, and Müller-Thurgau.