A territorial stamp category of the Lower Austrian winegrowers association Vinea Wachau Nobilis Districtus for dry white wines. There are three levels altogether: stone feather, Federspiel and emerald, The feather-light grass plant Steinfeder (lat. Stipa pennata), which is close to the terraced vineyards of the Wachau the edelweiss grows on rocks, gave the symbolic name. Mandatory for the light, fragrant and tangy wines is a must weight of 15 to 17 ° KMW and (since 2007) a maximum of 11.5% vol alcohol content. The category gave that Stonefeather Price his name.