2010-06-04 Vienna XXIII. district (Himmelswiese - Kalk-Wienerwald, 335 m AMSL).Not very common, prefers warm and dry, half-shadowy places (edges of woods, or also vineyards).German name: Aufrecht-WaldrebeID: Fischer & al., Exkursionsflora A FL SdT (2008 3rd)