2011-04-16 Lower Austria, district Wien-Umgebung (roadside; 380 msm Quadrant 7862/1). German name: Ruderal-Schaumkraut ID by Manfred A. Fischer - compare similar Cardamine flexuosa which has much shorter fruit and usually 3-6 pairs of leaflets; also, C. hirsuta grows fairly straight as compared to bending C. flexuosa.